At a restaurant, a survey was conducted to find which beverage the customers preferred. In the survey, every woman customer was asked which beverage was her favorite. Were the results of the survey valid?
A.
Yes, because the restaurant surveyed every tenth woman customer.
B.
No, because the sample was not random.
C.
No, because the restaurant did not have any male customers.
D.
Yes, because every woman was surveyed.