Task: Please answer the multiple choice question.
Question: Which molecule has the longest half life time in humans after IV administration?
Constraint: Even if you are uncertain, you must pick either a or b without using any additional words.
Options:
[a] CN1CCN(C2=Nc3cc(Cl)ccc3Nc3ccccc32)CC1
[b] COc1ccc(-c2nc3cc(C4=NNC(=O)CC4C)ccc3[nH]2)cc1
Answer: b
Task: Please answer the multiple choice question.
Question: Which molecule has the longest {half_life_duration__names__noun}?
Constraint: Even if you are {#uncertain|not sure!}, you must pick either {%multiple_choice_enum%2-5%aA1} without using any {#other|additional!} words.
Options:
{SMILES%half_life_duration%}
Answer: {%multiple_choice_result}
3-[2-(4-methoxyphenyl)-1H-benzimidazol-5-yl]-4-methyl-4,5-dihydro-1H-pyridazin-6-one