When do we not use an auxiliary verb in questions? When the question words are the subject of the verb in the question. When the question words ar...

When do we not use an auxiliary verb in questions?

When the question words are the subject of the verb in the question.
When the question words are the object of the verb in the question.
When the question words are the complement of the verb in the question.
a) Only I is correct.
b) Only II is correct.
c) Only III is correct.
d) I and II are correct.
e) I and III are correct.