Task: Answer the MCQ question.
Query: Which drug has a 12.606\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a or b without using any other words.
Options:
[a] COc1ccccc1CNC(=O)c1ccc(NS(=O)(=O)c2c(C)noc2C)cc1
[b] CC(C)C(=O)Nc1ccc([N+](=O)[O-])cc1Br
Answer: b. CC(C)C(=O)Nc1ccc([N+](=O)[O-])cc1Br
{#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#}
CC(C)C(=O)Nc1ccc([N+](=O)[O-])cc1Br
CC(C)C(=O)Nc1ccc([N+](=O)[O-])cc1Br
[3-bromo-4-(2-methylpropanoylamino)phenyl]-oxido-oxoazanium