Task: Answer the multiple-choice question.
Question: Which compound exhibits a 16.072\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a or b without using any additional words.
Options:
a. CCCc1cc(=O)n2c(nc3ccccc32)[nH]1
b. COc1cc(/C=N/NC(=O)c2ccncc2)ccc1OC(C)=O
Answer: a. CCCc1cc(=O)n2c(nc3ccccc32)[nH]1
{#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#}
CCCc1cc(=O)n2c(nc3ccccc32)[nH]1
CCCc1cc(=O)n2c(nc3ccccc32)[nH]1
2-propyl-1H-pyrimido[1,2-a]benzimidazol-4-one