Task: Answer the multiple choice question.
Question: Which drug has a 8.574\% 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: COc1ccc(NCC(=O)N/N=C/c2c(C)nn(Cc3ccccc3)c2Cl)cc1
b: O=[N+]([O-])c1ccc(F)cc1F
c: COC(=O)c1ccc(CN(c2ccccc2OC)S(=O)(=O)c2cccs2)o1
d: COc1cc2c(cc1OC)CN(Cc1cc(=O)n3c(-c4ccccc4)csc3n1)CC2
Answer: b. O=[N+]([O-])c1ccc(F)cc1F
{#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#}
2,4-difluoro-1-nitrocyclohexa-1,3,5-triene