Correct Answer - Option 3 : Both 1 and 2.

__Concept:__

**Arithmetic Mean (A. M.):** The Arithmetic Mean of a set of n numbers is given by:

A. M. = \(\rm \frac{\sum a_i}{n}\).

**Geometric Mean (G. M.):** The Geometric Mean of a set of n numbers is given by:

G. M. = \(\rm \sqrt[n]{\prod a_i}\).

__Calculation:__

Both the Arithmetic and Geometric Means use all the data for their calculations.