Problem statement: Answer the multiple-choice question.
Query: Which compound has a 2.514\% human ether-à-go-go related gene (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) O=S(=O)(NC1CCCC1)c1ccccc1Cl
b) COc1ccccc1N1CCN(C(=O)CCNS(=O)(=O)c2ccc3c(c2)CCC(=O)N3)CC1
c) Cc1nn(C(C)C(=O)NNC(=S)Nc2ccc(Cl)cc2)c(C)c1[N+](=O)[O-]
Answer: a. O=S(=O)(NC1CCCC1)c1ccccc1Cl
{#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#}
O=S(=O)(NC1CCCC1)c1ccccc1Cl
O=S(=O)(NC1CCCC1)c1ccccc1Cl
2-chloro-N-cyclopentylbenzenesulfonamide