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 uncertain, you must pick either a or b without using any additional words.
Options:
a. CC(C)(C)NCC(O)COc1cccc2c1C[C@H](O)[C@H](O)C2
b. CCOC(=O)c1ncn2c1CN(C)C(=O)c1cc(F)ccc1-2
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}
ethyl12-fluoro-8-methyl-9-oxo-2,4,8-triazatricyclo[8.4.0.02,6]tetradeca-1(10),3,5,11,13-pentaene-5-carboxylate