In following sentence, what is the subject complement? my neighbor is a newspaper reporter

o h y e a h y e a

the statement that best explains why the tenth amendment reserves some rights and powers to states is that the framers believed in the principle of federalism. this principle says that some powers are in the hands of a centralized national government, while others are reserved for the governments of several states.

explanation:

the answer its b i got it right when i did it trust

3 is blunder, i’m not sure about the last one but the first two look correct