Task: Answer the multiple choice question.
Query: Which compound has a 16.833\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a, b, c, or d without using any additional words.
Options:
a. O=C(O)Cn1nc(-c2ccccc2)c2ccccc2c1=O
b. Cc1nn2c(-c3ccccc3)ccnc2c1-c1ccccc1
c. CCOc1cc(C=C2C(=O)c3ccccc3C2=O)ccc1OCC(=O)Nc1ccc(C)cc1
d. CSc1ncccc1C(=O)OCC(=O)NCc1ccccc1
Answer: a. O=C(O)Cn1nc(-c2ccccc2)c2ccccc2c1=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)Cn1nc(-c2ccccc2)c2ccccc2c1=O
O=C(O)Cn1nc(-c2ccccc2)c2ccccc2c1=O
2-(1-oxo-4-phenylphthalazin-2-yl)acetic acid