Describe the Distribution of the Sample Mean-Samples from a Population $7,9,3,4$

Multiple Choice

Describe the Distribution of the Sample Mean-Samples from a Population That Is Not Normal
-The ages of five randomly chosen cars in a parking garage are determined to be $7,9,3,4$ , and 6 years old. If we consider this sample of 5 in groups of 3 , how many groups can be formed?

A) 10
B) 5
C) 30
D) 60