There are 4 possible coat sizes to choose from. Additionally, we can choose one color out of the 4 options. Since the number of possible sizes is related to the number of options we have, we can use the Fundamental Counting Principle.
ccccc
Number of & & Number of
Sizes & & Colors
4 & * & 4
Therefore, the number of possible selections of a color coat is the product of these two values.
4 * 4 = 16
