Task: Answer the multiple choice question.
Question: Which compound exhibits a 1.237\% 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 additional words.
Options:
a: O=C(CCCOc1ccccc1)Nc1cccc(S(=O)(=O)N2CCCCC2)c1
b: O=C(COC(=O)C1CCN(S(=O)(=O)c2cccs2)CC1)c1cc2ccccc2o1
c: NC(=O)c1ccccc1NC(=O)COc1ccc(Cl)cc1
d: COc1ccc(CSc2nncn2N)cc1Br
Answer: d. COc1ccc(CSc2nncn2N)cc1Br
{#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#}
COc1ccc(CSc2nncn2N)cc1Br
COc1ccc(CSc2nncn2N)cc1Br
3-[(3-bromo-4-methoxyphenyl)methylsulfanyl]-1,2,4-triazol-4-amine