The group of words that qualifies as a dependent clause as written on the options, is letter A. Because there is no evidence. The rest of the sentences are independent clauses. The word 'because' is a kind of conjunction that begins with a dependent clause. Therefore, the answer is letter A.
Answer:
Service benefits the helpers and those helped.
You are supposed to put titles in italics
Answer:
Linda Brown was a campaigner for equality in education.
Linda Brown lived in Topeka and Springfield
