In programming, what is used to refer to a specific position within an array?

In programming, an index is a specific number that corresponds to a position within an array. Arrays are data structures that store a collection of items, and each item in the array can be accessed or modified using its index. The index is typically an integer that starts from 0 for the first element, 1 for the second element, and so forth, allowing programmers to retrieve or manipulate data stored at that specific location.

The other options do not pertain to positions within an array. A module usually refers to a separate file or library that groups related functions or data together for better organization and reuse. An argument is a value passed to a function when it is called, providing the function with necessary input to execute. A function is a block of code designed to perform a specific task, which may or may not take arguments and return a result but does not denote any position within a data structure like an array.