Since Coming to University, Roger Has Eaten Many Kinds of Foods

Since coming to university, Roger has eaten many kinds of foods that he had never even heard of before. He has found that he dislikes oysters but enjoys sushi. What difference could you predict between his attitudes to oysters and sushi?

A) He came to dislike oysters faster than he came to like sushi.
B) He dislikes oysters more than he likes sushi.
C) He had a bias against oysters but not sushi before trying both foods.
D) He will be more likely to come to enjoy oysters than to stop enjoying sushi.