Task: Answer the MCQ question.
Query: Which drug has a 17.789\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a, b, or c without using any other words.
Options:
a: CCCC(=O)Nc1ccccc1NC(=O)c1ccc2c(c1)OCO2
b: CCCCn1c(=O)[nH]c(=O)c2c1nc(-c1cccc(OC)c1)n2C
c: O=c1c(Cl)c(O)c2cccc3c4ccccc4n1c23
Answer: b. CCCCn1c(=O)[nH]c(=O)c2c1nc(-c1cccc(OC)c1)n2C
{#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#}
CCCCn1c(=O)[nH]c(=O)c2c1nc(-c1cccc(OC)c1)n2C
CCCCn1c(=O)[nH]c(=O)c2c1nc(-c1cccc(OC)c1)n2C
3-butyl-8-(3-methoxyphenyl)-7-methylpurine-2,6-dione