In the sentence “A majority of Americans feels that President Trump has made race relations worse since George Floyd was killed by the police.” and its translation “大多数美国人认为,自乔治·弗洛伊德被警察杀害之后,特朗普总统令种族关系进一步恶化。” ,the adverbial clause of time is translated into an adverbial clause of .
A. time
B. condition
C. place
D. concession