Task: Please answer the multiple choice question.
Question: Which molecule has the longest half life in humans after IV administration?
Constraint: Even if you are not sure, you must pick either a or b without using any additional words.
Options:
a COc1cc2nc(N3CCN(C(=O)c4ccco4)CC3)nc(N)c2cc1OC
b COCCCOc1ccnc(C[S+]([O-])c2nc3ccccc3[nH]2)c1C
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}
1H-benzimidazol-2-yl-[[4-(3-methoxypropoxy)-3-methyl-pyridin-2-yl]methyl]-oxidanidyl-sulfanium