Task: Answer the multiple choice question.
Question: Which compound has a 9.810\% 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) O=Nc1ccc(NOC(=O)c2ccccc2Br)cc1
b) Cc1ccccc1OCC(=O)Nc1sc(C(=O)Nc2cccc(C)c2C)c(C)c1C#N
c) Brc1ccccc1-c1nc(-c2ccccc2)no1
d) COc1cccc(C(=O)Nc2cc(Cl)c(O)c(Cl)c2)c1
Answer: a. O=Nc1ccc(NOC(=O)c2ccccc2Br)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#}
O=Nc1ccc(NOC(=O)c2ccccc2Br)cc1
O=Nc1ccc(NOC(=O)c2ccccc2Br)cc1
(4-nitrosoanilino) 2-bromobenzoate