Task: Answer the MCQ question.
Query: Which compound exhibits a 21.931% human ether-à-go-go related gene (hERG) inhibition at 10uM?
Constraint: You must select none, one or more options from a, b, c, d, or e without using any other words.
Options:
a: Cc1ccc(SCCN2CCC(C(C)(C)C)CCC2=O)cc1
b: CCn1c(C)nc2cc(S(N)(=O)=O)ccc21
c: O=C(O)c1ccccc1C(=O)NCCCCCCNC(=O)c1ccccc1C(=O)O
d: CCOc1ccc(NC(=O)Cc2nnc(SCC(=O)N3CCOCC3)n2C)cc1
e: COc1ccc(C(=O)NCc2nnc(SCC(=O)N3CCc4ccccc43)n2CCc2ccccc2)cc1
Answer: b. CCn1c(C)nc2cc(S(N)(=O)=O)ccc21
{#Task|Problem statement!}: Answer the {#multiple choice|multiple-choice|MCQ!} question.
{#Question|Query!}: Which {#compound|drug!} {#has|exhibits!} a {herg_central_at_10uM#}{herg_central_at_10uM__units} {herg_central_at_10uM__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_10uM%}
Answer: {%multiple_choice_result}. {SMILES#}
CCn1c(C)nc2cc(S(N)(=O)=O)ccc21
CCn1c(C)nc2cc(S(N)(=O)=O)ccc21
1-ethyl-2-methylbenzimidazole-5-sulfonamide