Pick the option in line with common sense to answer the question.
Question: What does a priest do even if he or she cannot talk?
Options:

A. drink coffee

B. believe in god

C. pray

D. say mass

E. fast for forty days
B
If a priest cannot talk, he or she can still believe in god. The other options do not make sense as they all require the ability to speak.
So the answer is B.