The question has main statement, followed by four statements labeled A, B, C, and D. Choose the ordered pair of statements, where the first statement implies the second, and the two statement are logically consistent with the main statement.

Statement: Either he is a scientist or he is an engineer.

(A) He is a scientist.

(B) He is not a scientist.

(C) He is an engineer.

(D) He is not an engineer.