Task: Answer the multiple choice question.
Query: Which compound exhibits a 1.819% 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] COc1c(Cl)cccc1-c1cn2ccccc2n1
[b] CCc1cccc(Nc2cc(C)nc3ncnn23)c1
Answer: a. COc1c(Cl)cccc1-c1cn2ccccc2n1
{#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#}
COc1c(Cl)cccc1-c1cn2ccccc2n1
COc1c(Cl)cccc1-c1cn2ccccc2n1
2-(3-chloro-2-methoxyphenyl)imidazo[1,2-a]pyridine