Task: Answer the multiple-choice question.
Question: Which drug exhibits a 9.219\% hERG inhibition at 1uM?
Constraint: You must select none, one or more options from a or b without using any other words.
Options:
(a) CCN1CCN(S(=O)(=O)c2c(C)cc(C)cc2C)CC1
(b) Cc1c(S(=O)(=O)NCc2ccccc2)c(=O)n(C)c(=O)n1C
Answer: a. CCN1CCN(S(=O)(=O)c2c(C)cc(C)cc2C)CC1
{#Task|Problem statement!}: Answer the {#multiple choice|multiple-choice|MCQ!} question.
{#Question|Query!}: Which {#compound|drug!} {#has|exhibits!} a {herg_central_at_1uM#}{herg_central_at_1uM__units} {herg_central_at_1uM__names__noun}?
Constraint: You must select none, one or more options from {%multiple_choice_enum%2-5%aA1} without using any {#other|additional!} words.
Options:
{SMILES%herg_central_at_1uM%}
Answer: {%multiple_choice_result}. {SMILES#}
CCN1CCN(S(=O)(=O)c2c(C)cc(C)cc2C)CC1
CCN1CCN(S(=O)(=O)c2c(C)cc(C)cc2C)CC1
1-ethyl-4-(2,4,6-trimethylphenyl)sulfonylpiperazine