Task: Answer the multiple choice question.
Question: Which compound has a 25.271% hERG inhibition at a concentration of 10uM?
Constraint: You must select none, one or more options from a or b without using any other words.
Options:
a) CCn1c(=O)c([N+](=O)[O-])c(Cl)c2ccccc21
b) CC1(C(=O)NC(=S)N(Cc2ccccc2)c2ccccn2)CC1(Cl)Cl
Answer: a. CCn1c(=O)c([N+](=O)[O-])c(Cl)c2ccccc21
{#Task|Problem statement!}: Answer the {#multiple choice|multiple-choice|MCQ!} question.
{#Question|Query!}: Which {#compound|drug!} {#has|exhibits!} a {herg_central_at_10uM#}{herg_central_at_10uM__units} {herg_central_at_10uM__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_10uM%}
Answer: {%multiple_choice_result}. {SMILES#}
CCn1c(=O)c([N+](=O)[O-])c(Cl)c2ccccc21
CCn1c(=O)c([N+](=O)[O-])c(Cl)c2ccccc21
4-chloro-1-ethyl-3-nitroquinolin-2-one