The ObjectDataSource control in ADO.NET streamlines the process of binding to custom business objects, hence the correct option is "ObjectDataSource".

The DataSet plays a crucial role in managing data synchronization in a multi-tier application architecture. It acts as an in-memory cache of data retrieved from the database and provides a disconnected data model, allowing data to be transferred between the presentation layer and the database in a flexible and efficient manner.

When deciding between Code-First and Database-First in Entity Framework, factors such as the existing database structure and the availability of visual modeling tools should be considered. Database-First is suitable when working with an existing database schema or when visual modeling is preferred. On the other hand, Code-First provides more control over the code and development process, making it suitable for projects where development speed and code control are essential.

In ADO.NET, parameters are passed to a stored procedure using SqlParameter objects. These objects allow for type-safe and secure parameter passing, helping prevent SQL injection attacks and ensuring correct data types.

The SqlConnection class in ADO.NET is responsible for managing database connections efficiently. It represents a connection to a SQL Server database and provides methods for opening, closing, and managing transactions on the connection. SqlConnection is essential for establishing a connection to a database server and executing commands against it. It also handles connection pooling internally, which helps in optimizing connection usage and improving performance by reusing existing connections instead of creating new ones for each database operation. Understanding how to effectively work with SqlConnection is fundamental for building scalable and efficient database-driven applications in .NET.

GridView control is commonly used for displaying and editing tabular data in ASP.NET applications. It offers powerful data-binding capabilities, allowing developers to easily bind data from various data sources and display it in a tabular format. It also supports features like sorting, paging, and editing, making it a preferred choice for working with tabular data.

DataGridView is a versatile ADO.NET control used to display data in a tabular format. It provides features like sorting, filtering, and editing of data, making it suitable for displaying database query results in a tabular format within applications.

When using a data reader, the typical sequence of operations involves opening the connection to the database, executing the query to retrieve data, reading the data sequentially, and then closing the connection. This sequence ensures efficient data retrieval and resource management.

DataGrid and DataGridView controls offer a wide range of advanced features and functionalities, including sorting, filtering, grouping, and hierarchical data representation. These capabilities empower developers to create interactive and feature-rich applications that enhance data exploration and analysis for end users.

The "Read Uncommitted" isolation level allows a transaction to read data that has been modified but not yet committed by other transactions. It does not provide protection against dirty reads, non-repeatable reads, or phantom reads.