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 other words.
Options:
(a) C[C@@H]1O[C@@H]1P(=O)(O)O
(b) CC(=O)O[C@H]1C[C@]2(C)CC[C@H]3[C@@H]4C[C@H](N5CC[N+](C)(C)CC5)[C@H](OC(C)=O)[C@@]4(C)CC[C@@H]3[C@@]2(C)C[C@@H]1N1CC[N+](C)(C)CC1.[Br-].[Br-]
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}
[(2S,3S,5S,8R,9S,10R,13S,14S,16S,17R)-17-acetyloxy-2,16-bis(4,4-dimethylpiperazin-4-ium-1-yl)-5,10,13-trimethyl-1,2,3,4,6,7,8,9,11,12,14,15,16,17-tetradecahydrocyclopenta[a]phenanthren-3-yl] acetate;dibromide