Task: Answer the multiple choice question.
Question: Which drug exhibits a 20.080\% 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) Cc1ccc(Cn2c(SCC(=O)N(C)C3CCS(=O)(=O)C3)nc3ccccc3c2=O)cc1
(b) CCCc1[nH]c(=O)c(C#N)c2c1CCCC2
Answer: b. CCCc1[nH]c(=O)c(C#N)c2c1CCCC2
{#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#}
CCCc1[nH]c(=O)c(C#N)c2c1CCCC2
CCCc1[nH]c(=O)c(C#N)c2c1CCCC2
3-oxo-1-propyl-5,6,7,8-tetrahydro-2H-isoquinoline-4-carbonitrile