Read the sentence.
because she believed in equal rights, susan b. anthony led the movement to give women the right to vote.
the sentence has which type of sentence structure?
a) compound-complex
b) compound
c) complex
d) simple

The answer to your question would be that the sentence has a complex type of sentence structure.  A complex sentence has one dependent clause (they are headed by a subordinating conjunction or a relative pronoun) joined to a independent clause.

In this case the dependent clause is introduced by the subordinating conjunction "because" and it is joined by the independent clause "Susan B. Anthony led the movemetn to give women the right to vote".

well for some you have to do on your own on a paper but yeah