The word "great" is closest in meaning to which of following?

　　(A) dangerous

　　(B) unknown

　　(C) variable

　　(D) strong

　　300. The corona is a brilliant, pearly white, filmy light, about as bright as the full Moon. Its beautiful rays are a sensational sight during an eclipse. The corona's rays flash out in a brilliant fan that has wispy spike like rays near the Sun's north and south poles.

　　The word "sensational" is closest in meaning to which of following?

　　(A) spectacular

　　(B) predictable

　　(C) bizarre

　　(D) constant