Problem statement: Answer the multiple-choice question.
Question: Which compound exhibits a -5.540\% 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) NNC(=O)c1ccc(N2CCc3ccccc32)c([N+](=O)[O-])c1
b) CC1=C(C)[N+](=O)C2CCCCC2N1[O-]
c) COc1ccc(C2C(C(=O)Nc3cc(OC)c(OC)c(OC)c3)c3ccccc3C(=O)N2C)cc1OC
d) CC1=CC2=NC(=O)/C(=C/c3coc4ccc(Cl)cc4c3=O)C(=N)N2O1
Answer: b. CC1=C(C)[N+](=O)C2CCCCC2N1[O-]
{#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#}
CC1=C(C)[N+](=O)C2CCCCC2N1[O-]
CC1=C(C)[N+](=O)C2CCCCC2N1[O-]
2,3-dimethyl-4-oxido-4a,5,6,7,8,8a-hexahydroquinoxalin-1-ium 1-oxide