It is inevitable that ongoing research presupposes some accepted science as a principle. Usually no one even notices the implication that the accepted principle is being (i)____________ unless there emerges (ii)____________ that turns out to be sufficiently (iii)____________ that the assumptions underlying the research come to be considered. A. jeopardized B. an anomaly C. trivial D. revised E. a consensus F. transparent G. tested H. a distinction I. recalcitrant