Question

Meeting the licensing requirements set by the government

(A) May involve passing a written or oral examination
(B) is always voluntary
(C) is required for all occupations
(D) all of these

Answer 1

Meeting the licensing requirements may involve passing a written or oral examination. It's not voluntary because it's required by the government. It's not required for all occupations, there are many examples of this. Since it's not B or C, it can't be all of them, therefore, your answer is A.