Task: Answer the multiple choice question.
Question: Which drug has a 18.766\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a, b, or c without using any additional words.
Options:
[a] Cc1nn(Cc2c(F)c(F)c(F)c(F)c2F)c(C)c1NC(=O)c1c([N+](=O)[O-])c(C)nn1C
[b] CCOc1cc(N2CCOCC2)c(OCC)cc1NC(C)C(=O)N1CCC(C)CC1
[c] COC(=O)CN=Cc1c(C)[nH]n(-c2ccccc2)c1=O
Answer: a. Cc1nn(Cc2c(F)c(F)c(F)c(F)c2F)c(C)c1NC(=O)c1c([N+](=O)[O-])c(C)nn1C
{#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#}
Cc1nn(Cc2c(F)c(F)c(F)c(F)c2F)c(C)c1NC(=O)c1c([N+](=O)[O-])c(C)nn1C
Cc1nn(Cc2c(F)c(F)c(F)c(F)c2F)c(C)c1NC(=O)c1c([N+](=O)[O-])c(C)nn1C
N-[3,5-dimethyl-1-[(2,3,4,5,6-pentafluorophenyl)methyl]pyrazol-4-yl]-2,5-dimethyl-4-nitropyrazole-3-carboxamide