Task: Answer the multiple-choice question.
Query: Which drug exhibits a 10.127\% 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 O=C(c1ccccc1)c1ccc(-n2ccnc2)c([N+](=O)[O-])c1
b CCCC(=O)Nc1cc(Cl)ccc1N1CCN(C(=O)CC)CC1
c CN(Cc1ccccc1)S(=O)(=O)c1ccccc1[N+](=O)[O-]
d COC(=O)/C=C1/SC(=NC(=O)c2ccccc2)NC1=O
Answer: a. O=C(c1ccccc1)c1ccc(-n2ccnc2)c([N+](=O)[O-])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#}
O=C(c1ccccc1)c1ccc(-n2ccnc2)c([N+](=O)[O-])c1
O=C(c1ccccc1)c1ccc(-n2ccnc2)c([N+](=O)[O-])c1
(4-imidazol-1-yl-3-nitrophenyl)-phenylmethanone