Task: Answer the MCQ question.
Query: Which drug exhibits a -4.057\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a or b without using any other words.
Options:
(a) O=[N+]([O-])C(/C=C(\Cl)[N+](=O)[O-])=C1N(Cc2ccc(Cl)nc2)CCN1Cc1ccc(Cl)nc1
(b) Fc1ccccc1/C=C1\CCCC2=C1Nc1ncnn1C2c1ccccc1F
Answer: a. O=[N+]([O-])C(/C=C(\Cl)[N+](=O)[O-])=C1N(Cc2ccc(Cl)nc2)CCN1Cc1ccc(Cl)nc1
{#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=[N+]([O-])C(/C=C(\Cl)[N+](=O)[O-])=C1N(Cc2ccc(Cl)nc2)CCN1Cc1ccc(Cl)nc1
O=[N+]([O-])C(/C=C(\Cl)[N+](=O)[O-])=C1N(Cc2ccc(Cl)nc2)CCN1Cc1ccc(Cl)nc1
2-chloro-5-[[2-[(Z)-3-chloro-1,3-dinitroprop-2-enylidene]-3-[(6-chloropyridin-3-yl)methyl]imidazolidin-1-yl]methyl]pyridine