Task: Answer the multiple-choice question.
Query: Which compound has a 4.185\% hERG inhibition at 1uM?
Constraint: You must select none, one or more options from a or b without using any additional words.
Options:
(a) Cn1nccc1C(=O)N1CCOCC1
(b) Cn1c(SCC(=O)CC(=O)Nc2ccccc2)nnc1-c1ccc(O)cc1
Answer: a. Cn1nccc1C(=O)N1CCOCC1
{#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#}
Cn1nccc1C(=O)N1CCOCC1
Cn1nccc1C(=O)N1CCOCC1
(2-methylpyrazol-3-yl)-morpholin-4-ylmethanone