Which of the following statements about the if-else control structure is true?
- It can only test for numeric conditions.
- It executes the else block if the if condition is true.
- It allows for multiple conditions to be checked in sequence.
- It requires both if and else parts.
The if-else control structure in C++ provides a way to perform decision-making operations. If the condition inside the 'if' block evaluates to true, the 'if' block of code is executed; otherwise, the 'else' block is executed, if present. It can be used to check multiple conditions in sequence by nesting or using "else if".
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