You are working on a program that processes user input, and you want to ensure that the input string does not exceed a certain length to prevent buffer overflow. Which string handling function would be appropriate to use?

To limit the length of user input and prevent buffer overflow, the strncpy function is appropriate. It allows you to copy a specified number of characters from the input to the destination, ensuring the destination buffer does not overflow. strstr searches for a substring, strncat concatenates strings with a specified limit, and strcpy copies a string without length control.