When a Tissue, Such as a Muscle Membrane, Is "Super

When a tissue, such as a muscle membrane, is "super sensitive," this means that it

A) requires more chemical stimulus to excite it than normal.
B) requires less chemical stimulus to excite it than normal.
C) takes longer to excite the tissue than it normally does.
D) takes shorter time to excite the tissue than it normally does.
E) has no relationship to the strength of the stimulus that excites the tissue in question.