Task: Answer the MCQ question.
Question: Which drug exhibits a -1.138% hERG inhibition at a concentration of 10uM?
Constraint: You must select none, one or more options from a, b, or c without using any additional words.
Options:
[a] O=[N+]([O-])c1ccc2nccn2c1
[b] Nc1ccc(Br)cc1C(=O)O
[c] C/C(CC(=O)Nc1ccccn1)=N\NC(=O)c1ccc(C)cc1
Answer: a. O=[N+]([O-])c1ccc2nccn2c1
{#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#}
O=[N+]([O-])c1ccc2nccn2c1
O=[N+]([O-])c1ccc2nccn2c1
imidazo[1,2-a]pyridin-6-yl-oxido-oxoazanium