Task: Answer the multiple choice question.
Question: Which compound has a 19.584\% hERG inhibition at 1uM?
Constraint: You must select none, one or more options from a, b, c, or d without using any additional words.
Options:
a. CCCCn1c(N)c(N(CCC)C(=O)C2CCCC2)c(=O)[nH]c1=O
b. Cc1ccc(C2(C)NC(=O)N(CC(=O)Nc3c(C)n(C)n(-c4ccccc4)c3=O)C2=O)cc1
c. O=C1NC(C(=O)O)=CC(c2cccc(Cl)c2Cl)N1
d. S=C(NCCN1CCOCC1)NC1CCCCC1
Answer: d. S=C(NCCN1CCOCC1)NC1CCCCC1
{#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#}
S=C(NCCN1CCOCC1)NC1CCCCC1
S=C(NCCN1CCOCC1)NC1CCCCC1
1-cyclohexyl-3-(2-morpholin-4-ylethyl)thiourea