Problem statement: Answer the multiple-choice question.
Query: Which compound exhibits a -2.837\% 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 additional words.
Options:
a: COc1ccc(Nc2ccc([N+](=O)[O-])cc2[N+](=O)[O-])cc1
b: COc1ccc(C2C(C#N)=C(N)N(c3ccccc3C#N)C3=C2C(=O)CCC3)cc1CN1CCCC1
c: COC(=O)C1CSc2[nH]c(=O)sc2C1c1ccccc1
d: CC(NC(=O)CN(C)S(=O)(=O)c1ccc(Br)s1)c1ccccc1
Answer: a. COc1ccc(Nc2ccc([N+](=O)[O-])cc2[N+](=O)[O-])cc1
{#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(Nc2ccc([N+](=O)[O-])cc2[N+](=O)[O-])cc1
COc1ccc(Nc2ccc([N+](=O)[O-])cc2[N+](=O)[O-])cc1
N-(4-methoxyphenyl)-2,4-dinitroaniline