Problem statement: Answer the multiple choice question.
Query: Which drug has a -2.684\% hERG inhibition at 1uM?
Constraint: You must select none, one or more options from a or b without using any other words.
Options:
a) CCOC(=O)C1=C(O)C(=O)N(c2ccccc2)C1c1cccc([N+](=O)[O-])c1
b) COc1ccc2c(=O)c3c(=O)n(-c4ccccc4)c(-c4ccc(C)cc4)nc3oc2c1
Answer: a. CCOC(=O)C1=C(O)C(=O)N(c2ccccc2)C1c1cccc([N+](=O)[O-])c1
{#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#}
CCOC(=O)C1=C(O)C(=O)N(c2ccccc2)C1c1cccc([N+](=O)[O-])c1
CCOC(=O)C1=C(O)C(=O)N(c2ccccc2)C1c1cccc([N+](=O)[O-])c1
ethyl 4-hydroxy-2-(3-nitrophenyl)-5-oxo-1-phenyl-2H-pyrrole-3-carboxylate