Task: Answer the multiple choice question.
Question: Which drug has a 4.263\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a, b, c, d, or e without using any other words.
Options:
a: O=S1(=O)CC(NCc2ccccc2)C(Nc2ccccc2)C1
b: CCOC(=O)Cc1ncccc1C(=O)Nc1ccc(OC(F)(F)F)cc1
c: CCOC(=O)C(=CNc1cc(C)ccc1C)C(=O)OCC
d: Cc1cc(C)n(C(=O)COc2c(C)cccc2C)n1
e: CC1=C(CC(=O)c2ccccc2)C(=O)c2ccccc2C1=O
Answer: e. CC1=C(CC(=O)c2ccccc2)C(=O)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#}
2-methyl-3-phenacylnaphthalene-1,4-dione