Task: Answer the MCQ question.
Question: Which drug exhibits a -11.706% human ether-à-go-go related gene (hERG) inhibition at a concentration of 10uM?
Constraint: You must select none, one or more options from a, b, or c without using any additional words.
Options:
(a) O=C1CCC(C(=O)OC(C(=O)Nc2ccc([N+](=O)[O-])cc2Br)c2ccccc2)=NN1
(b) COc1cc(/C=N/NC(=O)c2cc(-c3cccc(Br)c3)nc3ccccc23)cc(OC)c1O
(c) Nc1c(NC2CCCCC2)c2ccccc2oc1=O
Answer: a. O=C1CCC(C(=O)OC(C(=O)Nc2ccc([N+](=O)[O-])cc2Br)c2ccccc2)=NN1
{#Task|Problem statement!}: Answer the {#multiple choice|multiple-choice|MCQ!} question.
{#Question|Query!}: Which {#compound|drug!} {#has|exhibits!} a {herg_central_at_10uM#}{herg_central_at_10uM__units} {herg_central_at_10uM__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_10uM%}
Answer: {%multiple_choice_result}. {SMILES#}
O=C1CCC(C(=O)OC(C(=O)Nc2ccc([N+](=O)[O-])cc2Br)c2ccccc2)=NN1
O=C1CCC(C(=O)OC(C(=O)Nc2ccc([N+](=O)[O-])cc2Br)c2ccccc2)=NN1
[2-(2-bromo-4-nitroanilino)-2-oxo-1-phenylethyl] 6-oxo-4,5-dihydro-1H-pyridazine-3-carboxylate