Problem statement: Answer the multiple choice question.
Query: Which compound has a 0.423\% 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] COc1cccc(C(=O)Nc2ccc(N3CCN(Cc4ccccc4)CC3)cc2)c1
[b] CC1CCN(S(=O)(=O)c2ccc3c(c2)N(C)C(=O)CC(=O)N3C)CC1
[c] O=[N+]([O-])c1cccc(N2Cc3ccccc3C2)c1
[d] N#Cc1ccc(OC(=O)Cc2ccsc2)cc1
Answer: c. O=[N+]([O-])c1cccc(N2Cc3ccccc3C2)c1
{#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=[N+]([O-])c1cccc(N2Cc3ccccc3C2)c1
O=[N+]([O-])c1cccc(N2Cc3ccccc3C2)c1
[3-(1,3-dihydroisoindol-2-yl)phenyl]-oxido-oxoazanium