Task: Answer the multiple choice question.
Question: Which compound has a -1.512\% 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 other words.
Options:
a: CCCCCC1CC(=O)N(Cc2ccccc2)C(=O)N1
b: COC(=O)CN(c1ccc(OCc2ccccc2)cc1)S(C)(=O)=O
c: Cc1cccc(Cn2cccc2/C=C2/C(=N)N3C=CSC3=NC2=O)c1
d: O=C(C/C=N\OCc1ccc([N+](=O)[O-])cc1)Nc1ccc(Cl)cc1
Answer: a. CCCCCC1CC(=O)N(Cc2ccccc2)C(=O)N1
{#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#}
CCCCCC1CC(=O)N(Cc2ccccc2)C(=O)N1
CCCCCC1CC(=O)N(Cc2ccccc2)C(=O)N1
3-benzyl-6-pentyl-1,3-diazinane-2,4-dione