Cilantro Tastes Soapy to Some People Because

Cilantro tastes soapy to some people because

A) there is genetic variation in at least one of the three types of receptors needed to perceive a nonsoapy flavor.
B) they are not an identical twin. Only identical twins detect a soapy flavor in cilantro, while all other people do not detect this soapy flavor.
C) their ancestors did not live in cultures where cilantro was a common ingredient in the cuisine.
D) they were not raised in an environment where cilantro was a common ingredient in the cuisine.