Task: Answer the multiple-choice question.
Query: Which drug exhibits a 12.428\% 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 other words.
Options:
a: CN(CCc1ccccn1)Cc1ccc(Cl)cc1
b: COCCCNC(=S)N1CCN(c2nc(-c3cccc(OC)c3)cs2)CC1
c: O=C(Nc1ccccc1)C1=C[C@H](c2coc3ccccc3c2=O)C[C@H](OCc2ccc(CO)cc2)O1
d: C=CCn1c(SCC(=O)N2CC(=O)Nc3ccccc32)nc2scc(-c3ccccc3)c2c1=O
Answer: c. O=C(Nc1ccccc1)C1=C[C@H](c2coc3ccccc3c2=O)C[C@H](OCc2ccc(CO)cc2)O1
{#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(Nc1ccccc1)C1=C[C@H](c2coc3ccccc3c2=O)C[C@H](OCc2ccc(CO)cc2)O1
O=C(Nc1ccccc1)C1=C[C@H](c2coc3ccccc3c2=O)C[C@H](OCc2ccc(CO)cc2)O1
(2R,4R)-2-[[4-(hydroxymethyl)phenyl]methoxy]-4-(4-oxochromen-3-yl)-N-phenyl-3,4-dihydro-2H-pyran-6-carboxamide