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, b, c, or d without using any other words.
Options:
(a) COc1cc([C@@H]2c3cc4c(cc3C(OC3OC5COC(C)OC5C(O)C3N)C3COC(=O)[C@@H]32)OCO4)cc(OC)c1O
(b) CCC1=C[C@@H]2CN(C1)Cc1c([nH]c3ccccc13)[C@@](C(=O)OC)(c1cc3c(cc1OC)N(C)[C@H]1[C@@](O)(C(=O)OC)[C@H](OC(C)=O)[C@]4(CC)C=CCN5CC[C@]31[C@@H]54)C2
(c) CCCN1CCCC[C@H]1C(=O)Nc1c(C)cccc1C
(d) CS(=O)(=O)OCCCCOS(C)(=O)=O
Answer: c
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)-N-(2,6-dimethylphenyl)-1-propylpiperidine-2-carboxamide