Task: Answer the multiple-choice question.
Question: Which drug has a 18.326% 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) CCc1ccc(OCc2n[nH]c(=S)n2C(C)CCCC(C)C)cc1
(b) O=c1c2c([nH]c3ccccc13)CCC2
Answer: b. O=c1c2c([nH]c3ccccc13)CCC2
{#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#}
O=c1c2c([nH]c3ccccc13)CCC2
O=c1c2c([nH]c3ccccc13)CCC2
1,2,3,4-tetrahydrocyclopenta[b]quinolin-9-one