A complex sentence contains one independent clause and at least one dependent clause. Here, in your example, there are two simple independent clauses which you need to merge using a dependent adjectival clause in order to make one complex sentence. Here is how to do it:
The boy <u>who wore a green coat</u><u /> carried his sister home.
The answer is B or whatever.
Answer:
Odysseus's problem, in terms of plot, is that he wants to return from the war to his home and his wife Penelope, who patiently awaits him.
Explanation: