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Which of the following statement is correct about the is_array() function in C++?

126. Which of the following statement is correct about the is_array() function in C++??

1. The is_array() function is used to check whether a variable is an array or not.
2. The is_array() function is used to check whether a variable is a 1D array or not.
3. The is_array() function is used to check whether a variable is a 1D or 2D array.
4. None of these

Answer: A) The is_array() function is used to check whether a variable is an array or not.

Explanation:

The is_array() function is used to check whether a variable is an array or not.