Task: Answer the multiple choice question.
Query: Which drug has a -21.403\% hERG inhibition at 1uM?
Constraint: You must select none, one or more options from a, b, c, d, or e without using any additional words.
Options:
a: CN(C)c1ccc(P(=O)(OC2CCCCC2)C(O)c2ccncc2)cc1
b: COCCNC(=O)CCCCCn1c(=S)[nH]c2ccccc2c1=O
c: CCc1ccc2nc(N3CCN(C)CC3)c(C#N)cc2c1
d: Cc1nc(SCC(=O)Nc2cccc(F)c2)c2oc3ccccc3c2n1
e: CSCCC(NS(=O)(=O)c1ccc(Cl)cc1)C(=O)OCC(=O)NC12CC3CC(CC(C3)C1)C2
Answer: c. CCc1ccc2nc(N3CCN(C)CC3)c(C#N)cc2c1
{#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#}
CCc1ccc2nc(N3CCN(C)CC3)c(C#N)cc2c1
CCc1ccc2nc(N3CCN(C)CC3)c(C#N)cc2c1
6-ethyl-2-(4-methylpiperazin-1-yl)quinoline-3-carbonitrile