大家快來答問題

You should use C in your answer, because of the followings:

Historically - is an adverb, used to indicate that something has happened often in the past.
E.g. 1. Historically speaking, a rise in interest rates slows the rate of inflation.
2. How historically significant is this discovery? etc.

Historical - is an adjective, usually before noun and connected to the study of history, relating to or involving the study of history / historical evidence/research etc.
E.g. It is important to look at the novel in its historical context.

C 是正確答案

係D .......

80%係D