Task: Answer the MCQ question.
Question: Which compound exhibits a 19.174% hERG inhibition at a concentration of 10uM?
Constraint: You must select none, one or more options from a, b, or c without using any other words.
Options:
a) O=C(Nc1nccs1)C1CC=CCC1C(=O)OCC(F)(F)C(F)F
b) O=C(O)Cn1ncc2ccccc2c1=O
c) CN(C)CCCNc1nc(-c2ccccc2)c2c(c1C#N)CC(C)(C)OC2
Answer: b. O=C(O)Cn1ncc2ccccc2c1=O
{#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=C(O)Cn1ncc2ccccc2c1=O
O=C(O)Cn1ncc2ccccc2c1=O
2-(2-hydroxy-2-oxoethyl)phthalazin-1-one