Task: Answer the multiple choice question.
Query: Which drug exhibits a 10.268\% 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) CCOc1cc([N+](=O)[O-])cc2c1C(=O)Nc1ccccc1O2
(b) CCOC(=O)c1cc2[nH]c3ccccc3c2[n+](-c2ccc([N+](=O)[O-])cc2)c1C.[Cl-]
(c) CC(CN1CCOCC1)OC(=O)Cc1ccccc1.Cl
Answer: a. CCOc1cc([N+](=O)[O-])cc2c1C(=O)Nc1ccccc1O2
{#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#}
CCOc1cc([N+](=O)[O-])cc2c1C(=O)Nc1ccccc1O2
CCOc1cc([N+](=O)[O-])cc2c1C(=O)Nc1ccccc1O2
7-ethoxy-9-nitro-5H-benzo[b][1,4]benzoxazepin-6-one