Task: Answer the multiple choice question.
Query: Which drug exhibits a 7.978\% hERG inhibition at 1uM?
Constraint: You must select none, one or more options from a or b without using any additional words.
Options:
a: O=C(/C=C/c1cccc([N+](=O)[O-])c1)N1CCOCC1
b: O=c1c2ccccc2cnn1-c1ccc(Cl)cc1
Answer: b. O=c1c2ccccc2cnn1-c1ccc(Cl)cc1
{#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=c1c2ccccc2cnn1-c1ccc(Cl)cc1
O=c1c2ccccc2cnn1-c1ccc(Cl)cc1
2-(4-chlorophenyl)phthalazin-1-one