Task: Answer the multiple choice question.
Query: Which compound exhibits a 18.469\% human ether-à-go-go related gene (hERG) inhibition at 1uM?
Constraint: You must select none, one or more options from a, b, c, or d without using any additional words.
Options:
[a] O=C(CCCCC(=O)Nc1ccccc1Cl)Nc1ccccc1Cl
[b] CCN(CC)C(=O)c1c2c(nc3ccccc13)-c1ccccc1CC2
[c] Cc1ccc(C(=O)NC(=S)Nc2nc(-c3cccc([N+](=O)[O-])c3)cs2)c(Cl)c1
[d] Cc1ccc(S(=O)(=O)/C(C#N)=C/c2ccccc2OCc2ccccc2)cc1
Answer: a. O=C(CCCCC(=O)Nc1ccccc1Cl)Nc1ccccc1Cl
{#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(CCCCC(=O)Nc1ccccc1Cl)Nc1ccccc1Cl
O=C(CCCCC(=O)Nc1ccccc1Cl)Nc1ccccc1Cl
N,N'-bis(2-chlorophenyl)hexanediamide