Task: Answer the multiple-choice question.
Question: Which compound has a 12.538\% 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] O=C(NCc1ccco1)c1cc(-c2ccc(Cl)cc2)on1
[b] O=C(Cc1ccc([N+](=O)[O-])cc1)c1c(O)cc(O)cc1O
[c] CCCC(C)C(=O)Nc1ccc(NC(C)=O)cc1
[d] NC(=O)[C@H]1CC2(CC(c3cccc(NC(=O)CC(c4ccccc4)c4ccccc4)c3)=NO2)CN1C(=O)c1ccccc1C(=O)c1ccccc1
Answer: c. CCCC(C)C(=O)Nc1ccc(NC(C)=O)cc1
{#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#}
N-[4-(acetylamino)phenyl]-2-methylpentanamide