Answer : 3. "Formulas"
Explanation :

1. Which of the following formulas is a feature in Microsoft Excel that is used to perform calculations on data in a spreadsheet?

2. A formula is a special type of formula used to add, subtract, multiply, and divide numbers, text, and other data.

3. LANPAR, the first electronic spreadsheet on mainframe and time-sharing computers, was developed in the year 1969.