Task: Answer the MCQ question.
Question: Which drug has a -2.269\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a, b, or c without using any additional words.
Options:
a. COc1ccc(CN2CCNC(=O)C2CC(=O)N(C)CCC2CCOCC2)c(OC)c1
b. CCCCC(=O)NC(c1cccc([N+](=O)[O-])c1)c1c(OC(C)=O)ccc2ccccc12
c. COCCN(Cc1cc2cc3c(cc2nc1Cl)OCO3)C(=O)Nc1ccccc1OC
Answer: b. CCCCC(=O)NC(c1cccc([N+](=O)[O-])c1)c1c(OC(C)=O)ccc2ccccc12
{#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)NC(c1cccc([N+](=O)[O-])c1)c1c(OC(C)=O)ccc2ccccc12
CCCCC(=O)NC(c1cccc([N+](=O)[O-])c1)c1c(OC(C)=O)ccc2ccccc12
[1-[(3-nitrophenyl)-(pentanoylamino)methyl]naphthalen-2-yl] acetate