2. A is a single function that the program must perform in order to satisfy the customer.

  A software requirement is a single function that the program must perform in order to satisfy the customer.

Explanation:

A program is a set of instructions or commands that are required to perform a job.  So before programming , we should know what we want our program to do so we can do it and then verify it.

The set of required tasks in our program is called as software requirement.

These are agreed by the customer and the developer before hand. Each software requirement describe a single wanted functionality from our program.

answer; certification; plz check first, i believe this is correct. good luck;