Task: Answer the multiple-choice question.
Query: Which compound has a 12.840\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a, b, or c without using any additional words.
Options:
[a] CCN(CC)C(=O)N1CCN(S(=O)(=O)c2ccc(C)c(C)c2)CC1
[b] COc1ccc(CNC(=O)COC(=O)c2c(-c3c(F)cccc3Cl)noc2C)cc1OC
[c] Nc1ccc(O)c([N+](=O)[O-])c1
Answer: a. CCN(CC)C(=O)N1CCN(S(=O)(=O)c2ccc(C)c(C)c2)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#}
4-(3,4-dimethylphenyl)sulfonyl-N,N-diethylpiperazine-1-carboxamide