Problem statement: Answer the multiple choice question.
Query: Which drug has a 12.806\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a or b without using any other words.
Options:
(a) CCCCC(=O)Nc1ccc(NC(=O)c2ccc(C)c([N+](=O)[O-])c2)cc1OC
(b) COC(=O)c1cccc2c1-c1ccccc1/C2=N/O
Answer: a. CCCCC(=O)Nc1ccc(NC(=O)c2ccc(C)c([N+](=O)[O-])c2)cc1OC
{#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#}
CCCCC(=O)Nc1ccc(NC(=O)c2ccc(C)c([N+](=O)[O-])c2)cc1OC
CCCCC(=O)Nc1ccc(NC(=O)c2ccc(C)c([N+](=O)[O-])c2)cc1OC
N-[3-methoxy-4-(pentanoylamino)phenyl]-4-methyl-3-nitrobenzamide