Task: Answer the multiple-choice question.
Question: Which compound has a 9.399\% hERG inhibition at 1uM?
Constraint: You must select none, one or more options from a, b, or c without using any other words.
Options:
[a] CCn1c(C)c(C)c2cc(C(=O)Nc3cccc(Cl)c3)ccc21
[b] COC(=O)[C@@H]1CC[C@H](C)[C@@H](c2ccc(C)cc2)N1C(=O)c1ccc(/C=N/O[C@@H](C)c2cn([C@H](CO)Cc3ccccc3)nn2)cc1
[c] O=S(=O)(c1ccccc1)N1CCN(c2cccc(Cl)c2)CC1
Answer: c. O=S(=O)(c1ccccc1)N1CCN(c2cccc(Cl)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#}
1-(benzenesulfonyl)-4-(3-chlorophenyl)piperazine