At a shoe store, you take a random sample of 50 pairs of shoes and determine that the average cost is $42. Which statement is true?

A) You conclude that the average price of all shoes is close to $42.
B) You conclude that the price of all shoes at the shoe store is exactly $42.
C) You conclude that more than half of the shoes at the shoe store cost less than $42.
D) You conclude that the average price of all shoes at the shoe store is close to $42.