Task: Answer the multiple choice question.
Question: Which drug exhibits a 5.955% hERG inhibition at a concentration of 10uM?
Constraint: You must select none, one or more options from a or b without using any other words.
Options:
a. Nc1n[nH]c(CO)n1.O=C(O)CO
b. COc1ccccc1Oc1ccccc1[N+](=O)[O-]
Answer: b. COc1ccccc1Oc1ccccc1[N+](=O)[O-]
{#Task|Problem statement!}: Answer the {#multiple choice|multiple-choice|MCQ!} question.
{#Question|Query!}: Which {#compound|drug!} {#has|exhibits!} a {herg_central_at_10uM#}{herg_central_at_10uM__units} {herg_central_at_10uM__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_10uM%}
Answer: {%multiple_choice_result}. {SMILES#}
COc1ccccc1Oc1ccccc1[N+](=O)[O-]
COc1ccccc1Oc1ccccc1[N+](=O)[O-]
1-(2-methoxyphenoxy)-2-nitrobenzene