Task: Answer the MCQ question.
Question: Which drug has a 2.153\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a, b, c, d, or e without using any additional words.
Options:
(a) COc1ccc(/C=C/c2c([N+](=O)[O-])c(=O)n(C)c(=O)n2C)c(OC)c1
(b) CCN(CC)CCCn1c2c(c(SCC(=O)Nc3cccc4ccccc34)nc1=O)CCC2
(c) O=C(NN1C(=O)NC2(CCCCC2)C1=O)c1ccc(Cl)s1
(d) O=C(Nc1ccc(-c2nc3cccnc3s2)cc1)C1CCCO1
(e) Fc1ccc(-n2cc(-c3ccccc3)c3c(NN4CCOCC4)ncnc32)cc1
Answer: a. COc1ccc(/C=C/c2c([N+](=O)[O-])c(=O)n(C)c(=O)n2C)c(OC)c1
{#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(/C=C/c2c([N+](=O)[O-])c(=O)n(C)c(=O)n2C)c(OC)c1
COc1ccc(/C=C/c2c([N+](=O)[O-])c(=O)n(C)c(=O)n2C)c(OC)c1
6-[(E)-2-(2,4-dimethoxyphenyl)ethenyl]-1,3-dimethyl-5-nitropyrimidine-2,4-dione