Task: Answer the multiple choice question.
Query: What is the human ether-à-go-go related gene (hERG) inhibition at 1uM of a drug with the SMILES CC(=O)N1N=C(c2ccncc2)OC1(Cc1ccccc1)Cc1ccccc1?
Constraint: You must return none, one or more options from a, b, or c without using any other words.
Options:
(a) -1.638
(b) 15.620
(c) 4.539
Answer: a. -1.638\%.
{#Task|Problem statement!}: Answer the {#multiple choice|multiple-choice|MCQ!} question.
{#Question|Query!}: What is the {herg_central_at_1uM__names__noun} of a {#compound|drug!} with the {SMILES__description} {SMILES#}?
Constraint: You must return none, one or more options from {%multiple_choice_enum%2-5%aA1} without using any {#other|additional!} words.
Options:
{herg_central_at_1uM%SMILES%}
Answer: {%multiple_choice_result}. {herg_central_at_1uM#}{herg_central_at_1uM__units}.
1-(2,2-dibenzyl-5-pyridin-4-yl-1,3,4-oxadiazol-3-yl)ethanone