Problem statement: Answer the multiple choice question.
Query: Which compound exhibits a 28.681% hERG inhibition at a concentration of 10uM?
Constraint: You must select none, one or more options from a or b without using any additional words.
Options:
a) O=C(NCc1ccco1)c1ccc2c(c1)C(=O)N(C1CCCCC1)C2=O
b) CCCCNC(=O)NCCN1CCOCC1
Answer: b. CCCCNC(=O)NCCN1CCOCC1
{#Task|Problem statement!}: Answer the {#multiple choice|multiple-choice|MCQ!} question.
{#Question|Query!}: Which {#compound|drug!} {#has|exhibits!} a {herg_central_at_10uM#}{herg_central_at_10uM__units} {herg_central_at_10uM__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_10uM%}
Answer: {%multiple_choice_result}. {SMILES#}
CCCCNC(=O)NCCN1CCOCC1
CCCCNC(=O)NCCN1CCOCC1
1-butyl-3-(2-morpholin-4-ylethyl)urea