Task: Answer the multiple choice question.
Query: Which drug has a 4.721\% 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) O=C(COc1cccnc1[N+](=O)[O-])Nc1ccccc1Sc1ccccc1
(b) CC(C)(C)OC(=O)N1CCC(N(C(=O)c2ccccc2)c2ccc(Cl)cc2)CC1
(c) COC(=O)c1ccc(CSc2nncn2C)cc1
(d) CN(C)CCCNC(=O)/C(=C\c1ccc(-c2ccc(Br)cc2)o1)NC(=O)c1ccccc1
Answer: a. O=C(COc1cccnc1[N+](=O)[O-])Nc1ccccc1Sc1ccccc1
{#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=C(COc1cccnc1[N+](=O)[O-])Nc1ccccc1Sc1ccccc1
O=C(COc1cccnc1[N+](=O)[O-])Nc1ccccc1Sc1ccccc1
2-(2-nitropyridin-3-yl)oxy-N-(2-phenylsulfanylphenyl)acetamide