안녕하세요, SAT 실전 문제 풀이 듣고 있습니다. 

In the late 19th century, Edgar Degas experimented with capturing movement in his paintings and sculptures. He often depicted dancers and racehorses, their forms suggesting dynamism and energy. Degas's work _____ synonymous with Impressionism and influence future generations of artists.

A) will become

B) has become

C) would become

D) became

왜 여기서 정답은 c이고 d는 되지 않을까요? 부탁 드립니다.