Task: Answer the multiple choice question.
Question: Which compound exhibits a 18.354\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a or b without using any other words.
Options:
a: COC(=O)c1[nH]c2cc(OC)c(OC)cc2c1/C=N/Nc1ccccc1
b: COn1c2c(c3c4no[n+]([O-])c4ccc31)CCCC2
Answer: b. COn1c2c(c3c4no[n+]([O-])c4ccc31)CCCC2
{#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#}
COn1c2c(c3c4no[n+]([O-])c4ccc31)CCCC2
COn1c2c(c3c4no[n+]([O-])c4ccc31)CCCC2
6-methoxy-3-oxido-7,8,9,10-tetrahydro-[1,2,5]oxadiazolo[3,4-c]carbazol-3-ium