Task: Answer the multiple choice question.
Query: Which compound has a 21.027\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a, b, or c without using any other words.
Options:
a) O=C(COC(=O)/C=C/c1ccc(Cl)cc1)Nc1ccc2[nH]c(=O)[nH]c2c1
b) COc1ccccc1/C=C(\C#N)C(=O)Nc1ccc(S(N)(=O)=O)cc1
c) Cc1cc(N2CCN(C(=O)c3ccco3)CC2)nc(-c2ccccc2)n1
Answer: a. O=C(COC(=O)/C=C/c1ccc(Cl)cc1)Nc1ccc2[nH]c(=O)[nH]c2c1
{#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(COC(=O)/C=C/c1ccc(Cl)cc1)Nc1ccc2[nH]c(=O)[nH]c2c1
O=C(COC(=O)/C=C/c1ccc(Cl)cc1)Nc1ccc2[nH]c(=O)[nH]c2c1
[2-oxo-2-[(2-oxo-1,3-dihydrobenzimidazol-5-yl)amino]ethyl] (E)-3-(4-chlorophenyl)prop-2-enoate