Problem statement: Answer the MCQ question.
Query: Which compound has a 12.338\% 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] O=[N+]([O-])c1ccccc1CCl
[b] C/C=C/CSc1nc2c(c(=O)[nH]c(=O)n2C)n1Cc1ccc(C)cc1
Answer: a. O=[N+]([O-])c1ccccc1CCl
{#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#}
2-(chloromethyl)-3-nitrocyclohexa-1,3,5-triene