Task: Answer the multiple-choice question.
Question: Which compound exhibits a 13.133\% human ether-à-go-go related gene (hERG) inhibition at 1uM?
Constraint: You must select none, one or more options from a, b, c, or d without using any additional words.
Options:
a: C/C(N)=N\S(=O)(=O)c1ccc(Cl)cc1
b: COc1ccccc1Nc1nc(NCc2ccco2)nc(N)c1[N+](=O)[O-]
c: N#Cc1ccc(NC(=O)Nc2cccc(C#N)c2)cc1
d: Cc1nccn1-c1c2c(c(C#N)c3nc4ccccc4n13)CCC2
Answer: b. COc1ccccc1Nc1nc(NCc2ccco2)nc(N)c1[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_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#}
COc1ccccc1Nc1nc(NCc2ccco2)nc(N)c1[N+](=O)[O-]
COc1ccccc1Nc1nc(NCc2ccco2)nc(N)c1[N+](=O)[O-]
2-N-(furan-2-ylmethyl)-4-N-(2-methoxyphenyl)-5-nitropyrimidine-2,4,6-triamine