Problem statement: Answer the MCQ question.
Question: Which drug exhibits a 12.332\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a, b, c, or d without using any other words.
Options:
(a) COCC(=O)Nc1ccccc1Br
(b) COc1cc(C(C)=O)ccc1OCC(O)CNCC1(N2CCCCC2)CCCCC1.O=C(O)C(=O)O
(c) Cc1ccc(SCc2[nH]nc3c2C2(C(=O)Nc4ccc([N+](=O)[O-])cc42)C(C#N)=C(N)O3)cc1
(d) COc1cccc(C(=O)CSc2nnc(COc3cccc4cccnc34)o2)c1
Answer: a. COCC(=O)Nc1ccccc1Br
{#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#}
COCC(=O)Nc1ccccc1Br
COCC(=O)Nc1ccccc1Br
N-(2-bromophenyl)-2-methoxyacetamide