Task: Answer the multiple choice question.
Question: Which compound has a -2.873\% 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 CCN1CCN(c2nc3c(C)cccn3c(=O)c2/C=C(\C#N)S(=O)(=O)c2ccc(C)cc2)CC1
b N#Cc1c(SCC(=O)OCc2ccccc2)nsc1SCC(=O)OCc1ccccc1
c Nc1ccccc1SCC(=O)N1CCc2ccccc21
d O=[N+]([O-])c1ccccc1CNCCCCO
Answer: a. CCN1CCN(c2nc3c(C)cccn3c(=O)c2/C=C(\C#N)S(=O)(=O)c2ccc(C)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#}
CCN1CCN(c2nc3c(C)cccn3c(=O)c2/C=C(\C#N)S(=O)(=O)c2ccc(C)cc2)CC1
CCN1CCN(c2nc3c(C)cccn3c(=O)c2/C=C(\C#N)S(=O)(=O)c2ccc(C)cc2)CC1
(E)-3-[2-(4-ethylpiperazin-1-yl)-9-methyl-4-oxopyrido[1,2-a]pyrimidin-3-yl]-2-(4-methylphenyl)sulfonylprop-2-enenitrile