Task: Answer the MCQ question.
Query: Which drug exhibits a 1.616\% hERG inhibition at 1uM?
Constraint: You must select none, one or more options from a or b without using any other words.
Options:
a: COc1ccc2[nH]c(=O)c(CN(Cc3cccs3)Cc3nnnn3Cc3ccccc3)cc2c1
b: Cn1ncc2c(Nc3cccc4ccccc34)ncnc21
Answer: b. Cn1ncc2c(Nc3cccc4ccccc34)ncnc21
{#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#}
Cn1ncc2c(Nc3cccc4ccccc34)ncnc21
Cn1ncc2c(Nc3cccc4ccccc34)ncnc21
1-methyl-N-naphthalen-1-ylpyrazolo[3,4-d]pyrimidin-4-amine