To declare an array in C++, you must specify:
The data type
The array name
The number of elements inside square brackets [ ]
int arr[10];
This correctly declares an array that can store 10 integers.
Why other options are incorrect
A) int arr; ❌ → Declares a single integer, not an array
B) int arr(10); ❌ → Not valid array syntax
D) array int arr[10]; ❌ → Invalid C++ syntax
Correct Answer: C) int arr[10];
Description:int arr[10] is the correct way to declare an array of 10 integers in C++.