Which statement about arrays is true?

• A. It can store items of different types in most languages
• B. It stores items in no particular order
• C. It is an ordered collection of items accessible by index
• D. It cannot be resized once created

Answer: (C)

Arrays are best understood as an ordered collection of items that you can access by index. The key idea is that the items sit in a specific sequence, and each element has a position you can reference with a number. This makes retrieving any element straightforward and fast, since you go straight to the place in the sequence using its index.

This is why the statement about being an ordered collection of items accessible by index is the correct description. In many languages, arrays are designed to hold elements of the same type, and some languages use fixed sizes for arrays, though other languages offer dynamic resizing. So statements about mixing types or about being unresizable aren’t universal traits of arrays.