Task: Answer the multiple-choice question.
Question: Which compound has a 9.392\% human ether-à-go-go related gene (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) COc1ccc(OC)c(S(=O)(=O)N2CCCC(C(=O)N3CCC(C(N)=O)CC3)C2)c1
(b) CCn1cnc2cc(NCc3cccs3)ccc21
(c) CCOc1ccc2oc(C(=O)NCc3ccccc3CN3CCCC3)c(C)c2c1
Answer: b. CCn1cnc2cc(NCc3cccs3)ccc21
{#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#}
CCn1cnc2cc(NCc3cccs3)ccc21
CCn1cnc2cc(NCc3cccs3)ccc21
1-ethyl-N-(thiophen-2-ylmethyl)benzimidazol-5-amine