If All of the Tickets Purchased in This Week's State

If all of the tickets purchased in this week's state lottery is considered the population, the five winning tickets drawn on Saturday constitute the sample. If the lottery is not "fixed," why is this a probability sample?

A) Because according to the laws of probability, the group of five people who won is exactly representative of all of the persons who purchased tickets.
B) Because each ticket purchased has a chance of being included in the sample.
C) Because the tickets drawn have a high probability of being representative of all tickets purchased.
D) Because use of random sampling increases the probability that those persons whose tickets win will play the lottery again.
E) Because each ticket probably has an equal chance of being included in the winning group, whether or not random sampling is used.