How do you declare an array in C?

How do you declare an array in C?

• A. Using the syntax: array[array_size];
• B. Using the syntax: array_type array_name[];
• C. Using the syntax: data_type array_name[array_size];
• D. Using the syntax: array_type[] array_name;

Answer: (C)

Declaring an array in C requires specifying both the data type of the elements it will hold and the size of the array. This is accomplished using the syntax that states the data type followed by the array name and the size enclosed in square brackets. Therefore, the choice that accurately describes how to declare an array in C is the one that employs this syntax: data_type array_name[array_size]. This approach informs the compiler about what type of data will be stored in the array (for example, integers, floating-point numbers, or characters) and how many elements the array can hold, which is necessary for memory allocation. The other provided options either lack the necessary information or do not conform to the correct syntax. For instance, while declaring an array without specifying the size of the array is valid in certain cases (like initialization), it is not a declaration in the strict sense necessary for defining an empty array with a fixed size. The syntax must always include the data type and the size to define the array properly.

Declaring an array in C requires specifying both the data type of the elements it will hold and the size of the array. This is accomplished using the syntax that states the data type followed by the array name and the size enclosed in square brackets. Therefore, the choice that accurately describes how to declare an array in C is the one that employs this syntax: data_type array_name[array_size].

This approach informs the compiler about what type of data will be stored in the array (for example, integers, floating-point numbers, or characters) and how many elements the array can hold, which is necessary for memory allocation.

The other provided options either lack the necessary information or do not conform to the correct syntax. For instance, while declaring an array without specifying the size of the array is valid in certain cases (like initialization), it is not a declaration in the strict sense necessary for defining an empty array with a fixed size. The syntax must always include the data type and the size to define the array properly.