Task: Answer the multiple-choice question.
Question: Which drug exhibits a 10.656\% 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.) COc1ccc(NC(=O)CC(Cc2ccccc2)C(=O)O)cc1
b.) O=C(O)c1[nH]c2ccc(Br)cc2c1CCN1C(=O)c2cccc([N+](=O)[O-])c2C1=O
Answer: b. O=C(O)c1[nH]c2ccc(Br)cc2c1CCN1C(=O)c2cccc([N+](=O)[O-])c2C1=O
{#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=C(O)c1[nH]c2ccc(Br)cc2c1CCN1C(=O)c2cccc([N+](=O)[O-])c2C1=O
O=C(O)c1[nH]c2ccc(Br)cc2c1CCN1C(=O)c2cccc([N+](=O)[O-])c2C1=O
5-bromo-3-[2-(4-nitro-1,3-dioxoisoindol-2-yl)ethyl]-1H-indole-2-carboxylic acid