A ate grapes and pineapple; B ate grapes and oranges; C ate oranges, pineapple and apple; D ate grapes, apple and pineapple. After taking fruits, B and C fell ****. In the light of the above facts,
it can be said that the cause of sickness was:
(a) Apple
(b) Pineapple
(c) Grapes
(d) Oranges