Task: Answer the multiple-choice question.
Question: Which compound exhibits a 7.800\% human ether-à-go-go related gene (hERG) inhibition at 1uM?
Constraint: You must select none, one or more options from a, b, c, or d without using any other words.
Options:
(a) Br.COc1cc(NS(=O)(=O)c2ccc(Nc3nc(-c4cccc([N+](=O)[O-])c4)cs3)cc2)nc(OC)n1
(b) COc1cccc(CNC(=O)CCC2CCCN(C(=O)CCn3cncn3)C2)c1
(c) COC(=O)Cn1c(C)nc2ccccc21
(d) CC(C)(C)c1ccc(OCCNC(=O)c2ncn[nH]2)cc1
Answer: c. COC(=O)Cn1c(C)nc2ccccc21
{#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#}
COC(=O)Cn1c(C)nc2ccccc21
COC(=O)Cn1c(C)nc2ccccc21
methyl 2-(2-methylbenzimidazol-1-yl)acetate