Task: Answer the multiple choice question.
Question: Which compound has a 18.266% hERG inhibition at a concentration of 10uM?
Constraint: You must select none, one or more options from a or b without using any additional words.
Options:
a: O=C1c2ccccc2C(=O)C1(CO)c1ccc(OC(F)F)cc1
b: O=C(NC(Cc1ccccc1)c1ccc2c(c1)OCCCO2)c1ccccc1
Answer: a. O=C1c2ccccc2C(=O)C1(CO)c1ccc(OC(F)F)cc1
{#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=C1c2ccccc2C(=O)C1(CO)c1ccc(OC(F)F)cc1
O=C1c2ccccc2C(=O)C1(CO)c1ccc(OC(F)F)cc1
2-[4-(difluoromethoxy)phenyl]-2-(hydroxymethyl)indene-1,3-dione