Task: Answer the multiple-choice question.
Query: Which drug exhibits a -3.309\% hERG inhibition at 1uM?
Constraint: You must select none, one or more options from a or b without using any additional words.
Options:
(a) O=C(Oc1cccc([N+](=O)[O-])c1)C1CCN(C(=O)c2ccc(F)cc2)CC1
(b) CN1CCN(c2ccc(Cl)cc2NC(=O)c2ccc([N+](=O)[O-])cc2)CC1
Answer: a. O=C(Oc1cccc([N+](=O)[O-])c1)C1CCN(C(=O)c2ccc(F)cc2)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=C(Oc1cccc([N+](=O)[O-])c1)C1CCN(C(=O)c2ccc(F)cc2)CC1
O=C(Oc1cccc([N+](=O)[O-])c1)C1CCN(C(=O)c2ccc(F)cc2)CC1
(3-nitrophenyl) 1-(4-fluorobenzoyl)piperidine-4-carboxylate