Problem statement: Answer the MCQ question.
Question: Which drug exhibits a 13.819\% 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) CN(CC(=O)Nc1ccc(Cl)cc1)CC(=O)Nc1cccc2ccccc12
(b) Nc1nonc1OCCOCCOCCOc1nonc1N
(c) O=C(CN1CCN(Cc2ccccc2)CC1)Nc1nc2ccccc2s1
(d) COc1ccc(-c2c(NC(=O)c3ccco3)n(C)c3ccccc3c2=O)cc1
Answer: b. Nc1nonc1OCCOCCOCCOc1nonc1N
{#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#}
Nc1nonc1OCCOCCOCCOc1nonc1N
Nc1nonc1OCCOCCOCCOc1nonc1N
4-[2-[2-[2-[(4-amino-1,2,5-oxadiazol-3-yl)oxy]ethoxy]ethoxy]ethoxy]-1,2,5-oxadiazol-3-amine