가로 안에 있는 문장을 맞게 고친것을 고르시오. 그리고 다른것이 왜 틀렸는지 설명하시오. 가로안 문장이 정답이될수도있음 = A.
The shift from traditional to cosmetic dentistry (is because adults are getting fewer cavities and becoming) more vain

A) is because adults are getting fewer cavities and becoming
B) is because of adults getting fewer cavities and their becoming
C) is casued from adults getting fewer cavities and in addition become
D) is occuring because adults are getting fewer cavities and becoming
E) occurs because of adults getting fewer cavities and become

정답을 맞추고, 다른것들이 왜틀렸는지 설명까지 완벽하게 다하면.
UNC 인증한다 씨발것 ㅇㅇ