30. The word "prevailed" in line 3 is closest in meaning to (A) dominated (B) transformed (C) entered (D) generalized

27. Why does the author mention "consultants" in line 24 ? (A) To show how new areas of science have given rise to new professions (B) To distinguish between scientists who work in industry and those who do not (C) To explain the ways in which scientists find financial support for their work (D) To show how scientists who work in basic research contribute to applied science