Task: Answer the multiple-choice question.
Query: What is the human ether-à-go-go related gene (hERG) inhibition at 1uM of a drug with the SMILES O=C1NC2NC(=O)N([N+](=O)[O-])C2N1?
Constraint: You must return none, one or more options from a, b, c, d, or e without using any additional words.
Options:
a 19.261
b 10.864
c 15.435
d -16.428
e 8.171
Answer: c. 15.435\%.
{#Task|Problem statement!}: Answer the {#multiple choice|multiple-choice|MCQ!} question.
{#Question|Query!}: What is the {herg_central_at_1uM__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_1uM%SMILES%}
Answer: {%multiple_choice_result}. {herg_central_at_1uM#}{herg_central_at_1uM__units}.
O=C1NC2NC(=O)N([N+](=O)[O-])C2N1
O=C1NC2NC(=O)N([N+](=O)[O-])C2N1
4-nitro-3,3a,6,6a-tetrahydro-1H-imidazo[4,5-d]imidazole-2,5-dione