Problem statement: Answer the multiple choice question.
Query: Which compound has a 1.973\% 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/C(=C\c1ccc2ccccc2n1)c1ccc(O)cc1O
b. CC(C)(C)c1ccc(CSc2cnn(C(C)(C)C)c(=O)c2Cl)cc1
c. Cc1ccc(-n2c(C)cc(/C=N/Nc3ccc([N+](=O)[O-])cn3)c2C)cc1
Answer: a. O/C(=C\c1ccc2ccccc2n1)c1ccc(O)cc1O
{#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(=C\c1ccc2ccccc2n1)c1ccc(O)cc1O
O/C(=C\c1ccc2ccccc2n1)c1ccc(O)cc1O
4-[(Z)-1-hydroxy-2-quinolin-2-ylethenyl]benzene-1,3-diol