Creating a Copy of an Existing Worksheet

The Meaning of "income (2)"

The name "income (2)" suggests that this worksheet is a copy of an existing worksheet named "income."

Therefore, the most likely answer is a. A copy of an existing worksheet named income. When a user creates a copy of an existing worksheet, the system automatically adds a number in parentheses to the copied worksheet's name to differentiate it from the original.

This is a common practice when users want to make changes to an existing worksheet without affecting the original data. By creating a copy, users can experiment with different scenarios or perform calculations without affecting the original data.