Task: Answer the multiple choice question.
Question: Which compound has a 0.253\% 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] CCCCCC(=O)N/N=C/c1ccc([N+](=O)[O-])o1
[b] O=C(c1ccc(Cl)c(Cl)c1)c1cc(-c2ccccn2)c(N2CCOCC2)s1
[c] C=CCOc1ccc(CNCc2cccnc2)cc1OCC.Cl
[d] COc1ccnc(CSC(N)=Nc2ccc(F)cc2)c1.Cl
Answer: a. CCCCCC(=O)N/N=C/c1ccc([N+](=O)[O-])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#}
CCCCCC(=O)N/N=C/c1ccc([N+](=O)[O-])o1
CCCCCC(=O)N/N=C/c1ccc([N+](=O)[O-])o1
N-[(E)-(5-nitrofuran-2-yl)methylideneamino]hexanamide