Mark the letter A, B, C or D on your answer sheet to indicate the underlined part that needs correction in each of the following questions.
10 Breakthrough Technologies 2017, such as reversing paralysis, self-driving (A) trucks, the 360-degree (B) selfie,.., will effect (C) the economy and our politics, improve (D) medicine, or influence our culture.
A. seft-driving
B. 360-degree
C. effect
D. improve