Task: Answer the multiple-choice question.
Query: Which drug exhibits a 2.842\% 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(CS(=O)(=O)c1ccccc1)Nc1nc2ccccc2s1
(b) CCN(CC(=O)Nc1ccc([N+](=O)[O-])cc1OC)CC(=O)NC(C)(C)C
(c) Cc1cccc2cc(CN(Cc3ccco3)C(=O)NC3CCCCC3)c(=O)[nH]c12
(d) COc1cc(C(=O)OCc2cccc(OC)c2OC)ccc1OCC(=O)N1CCOCC1
Answer: b. CCN(CC(=O)Nc1ccc([N+](=O)[O-])cc1OC)CC(=O)NC(C)(C)C
{#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#}
CCN(CC(=O)Nc1ccc([N+](=O)[O-])cc1OC)CC(=O)NC(C)(C)C
CCN(CC(=O)Nc1ccc([N+](=O)[O-])cc1OC)CC(=O)NC(C)(C)C
2-[[2-(tert-butylamino)-2-oxoethyl]-ethylamino]-N-(2-methoxy-4-nitrophenyl)acetamide