Task: Answer the multiple choice question.
Query: Which drug has a 2.220% hERG inhibition at a concentration of 10uM?
Constraint: You must select none, one or more options from a, b, c, or d without using any additional words.
Options:
a: CCOC(=O)NN1C(=O)c2ccccc2NC1(C)C
b: CCCC(CCC)=NNC(=O)c1ccccc1F
c: CCOCCCn1c(=S)[nH]c2cc(C(=O)N3CCC(C(N)=O)(N4CCCCC4)CC3)ccc2c1=O
d: O=C(CCN1CCN(c2ccccc2)CC1)Nc1ccc2c(c1)OCO2
Answer: b. CCCC(CCC)=NNC(=O)c1ccccc1F
{#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#}
CCCC(CCC)=NNC(=O)c1ccccc1F
CCCC(CCC)=NNC(=O)c1ccccc1F
2-fluoro-N-(heptan-4-ylideneamino)benzamide