Answer:
A. when their ship docked
Explanation:
A dependent clause is a group of words with a subject and a verb. However, it cannot stand alone as it does not express a complete thought. B expresses a complete thought and can stand alone as a sentence, so we can eliminate that as a possible answer. Although C can seem like a possible answer, A is a better choice because it features the dependent marker "when".
The answer is to identify the supporting details.
Pretty sure it's C. while that's what i'd go with, it could be B.
