Problem statement: Answer the multiple choice question.
Query: What is the human ether-à-go-go related gene (hERG) inhibition at 10uM of a drug with the SMILES COc1ccc2c(CCNC(=O)c3ccc([N+](=O)[O-])cc3)c[nH]c2c1?
Constraint: You must return none, one or more options from a, b, c, or d without using any other words.
Options:
(a) 20.920
(b) 22.507
(c) -19.840
(d) 7.064
Answer: a. 20.920%.
{#Task|Problem statement!}: Answer the {#multiple choice|multiple-choice|MCQ!} question.
{#Question|Query!}: What is the {herg_central_at_10uM__names__noun} of a {#compound|drug!} with the {SMILES__description} {SMILES#}?
Constraint: You must return none, one or more options from {%multiple_choice_enum%2-5%aA1} without using any {#other|additional!} words.
Options:
{herg_central_at_10uM%SMILES%}
Answer: {%multiple_choice_result}. {herg_central_at_10uM#}{herg_central_at_10uM__units}.
COc1ccc2c(CCNC(=O)c3ccc([N+](=O)[O-])cc3)c[nH]c2c1
COc1ccc2c(CCNC(=O)c3ccc([N+](=O)[O-])cc3)c[nH]c2c1
N-[2-(6-methoxy-1H-indol-3-yl)ethyl]-4-nitrobenzamide