Which of the following is a complex sentence that contains a dependent adverbial clause?

AMark expects the photo to arrive in damaged condition.
BMark expects the photo to arrive late.
CMark expects the photo to arrive when the letter arrives.
DMark expects the photo to arrive on Tuesday.

Verified Answer :

A complex sentence is a sentence with a subordinate clause.

In the sentences above "to arrive" is an infinitive phrase, not a subordinate phrase. the subordinate phrase here is "when the letter arrives" so the correct answer is

c. Mark expects the photo to arrive when the letter arrives.

Answer:

I just took the test, the answer is c.

Explanation: