Problem statement: Answer the multiple choice question.
Query: Which drug exhibits a 0.540\% 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. COc1ccc(C(c2c(C)[nH]n(C(N)=S)c2=O)C(C#N)C#N)cc1
b. O=C(CC1CCCCC1)NC1CCCC1
c. O=C(CN1CCN(c2cccc(Cl)c2)CC1)Nc1ccc([N+](=O)[O-])cc1C(=O)Nc1ccccc1F
Answer: b. O=C(CC1CCCCC1)NC1CCCC1
{#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#}
O=C(CC1CCCCC1)NC1CCCC1
O=C(CC1CCCCC1)NC1CCCC1
2-cyclohexyl-N-cyclopentylacetamide