HARRY POTTER FANBOYS/GIRLS OUT THERE WHERE ARE U??

It's to know your purpose before you read something because a purpose can:

Which of these sentences exhibits proper usage? a. many doctors affiliated with university hospital expressed concern about the policy (moore 5). b. many doctors affiliated with university hospital expressed concern about the policy (moore 5). c. many doctors affiliated with university hospital expressed concern about the policy (moore 5). d. many doctors affiliated with university hospital expressed concern about the policy (moore 5).

What is the probability of getting a license plate with 123 abc or abc 123?