Task: Answer the MCQ question.
Query: What is the hERG inhibition at a concentration of 10uM of a drug with the SMILES O=C(COc1cc(O)c2c(=O)cc(-c3ccccc3)oc2c1)c1cccc([N+](=O)[O-])c1?
Constraint: You must return none, one or more options from a, b, c, d, or e without using any other words.
Options:
[a] 7.621
[b] 6.842
[c] 2.022
[d] 20.770
[e] -12.696
Answer: a. 7.621%.
{#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}.
O=C(COc1cc(O)c2c(=O)cc(-c3ccccc3)oc2c1)c1cccc([N+](=O)[O-])c1
O=C(COc1cc(O)c2c(=O)cc(-c3ccccc3)oc2c1)c1cccc([N+](=O)[O-])c1
5-hydroxy-7-[2-(3-nitrophenyl)-2-oxoethoxy]-2-phenylchromen-4-one