Problem statement: Answer the multiple-choice question.
Question: Which drug exhibits a 13.625\% hERG inhibition at 1uM?
Constraint: You must select none, one or more options from a, b, or c without using any other words.
Options:
(a) O=C(Nc1ccc2c(c1)OCCO2)c1cccc(C(=O)Nc2ccc3c(c2)OCCO3)c1
(b) O=C(O)Cn1ncc2ccccc2c1=O
(c) O=C(CCN1C(=O)/C(=C/c2ccccc2)SC1=S)NCCc1ccc(O)cc1
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_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(O)Cn1ncc2ccccc2c1=O
O=C(O)Cn1ncc2ccccc2c1=O
2-(2-hydroxy-2-oxoethyl)phthalazin-1-one