Task: Answer the MCQ question.
Question: Which drug has a -19.534\% hERG inhibition at 1uM?
Constraint: You must select none, one or more options from a, b, or c without using any additional words.
Options:
(a) O=c1c2ccccc2nc(-c2ccc(Cl)cc2Cl)n1O
(b) Cc1cc(C(=O)CS(=O)(=O)c2ccc(Cl)cc2)cc(C)c1O
(c) COc1ccc(N2CC(C(=O)OCC(=O)Nc3ccccc3C)CC2=O)cc1
Answer: a. O=c1c2ccccc2nc(-c2ccc(Cl)cc2Cl)n1O
{#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=c1c2ccccc2nc(-c2ccc(Cl)cc2Cl)n1O
O=c1c2ccccc2nc(-c2ccc(Cl)cc2Cl)n1O
2-(2,4-dichlorophenyl)-3-hydroxyquinazolin-4-one