S1 문장의 [______]에 들어갈 단어는?

난이도 고난도 · 힌트를 덜 열수록 높은 점수 (현재 5점)
This graph shows the number of U.S. Science and Engineering (S & E) [______] degrees earned by students from China, India, South Korea, and Taiwan from 1987 to 2007.