Problem statement: Answer the multiple-choice question.
Question: Which compound has a 20.681\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a, b, or c without using any other words.
Options:
(a) NC(=O)c1ccc(NC(=O)CCC(=O)c2cccs2)cc1
(b) CCOC(=O)c1c([N+](=O)[O-])c(C)[nH]c(=O)c1C#N
(c) O=C(Oc1cccc(-c2cnc3ccccc3n2)c1)c1ccco1
Answer: b. CCOC(=O)c1c([N+](=O)[O-])c(C)[nH]c(=O)c1C#N
{#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#}
CCOC(=O)c1c([N+](=O)[O-])c(C)[nH]c(=O)c1C#N
CCOC(=O)c1c([N+](=O)[O-])c(C)[nH]c(=O)c1C#N
ethyl 5-cyano-2-methyl-3-nitro-6-oxo-1H-pyridine-4-carboxylate