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, b, c, d, or e without using any additional words.
Options:
a CC1CCN(CCCC(=O)c2ccc(F)cc2)CC1
b NCCCCCC(=O)O
c C=C[C@H]1CN2CC[C@H]1C[C@H]2[C@H](O)c1ccnc2ccc(OC)cc12
d COc1cc([C@@H]2c3cc4c(cc3[C@@H](O[C@@H]3O[C@@H]5CO[C@@H](c6cccs6)O[C@H]5[C@H](O)[C@H]3O)[C@H]3COC(=O)[C@H]23)OCO4)cc(OC)c1O
e CCC1CN2CCC1CC2[C@@H](O)c1ccnc2ccc(OC)cc12
Answer: a
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}
1-(4-fluorocyclohexa-1,3,5-trien-1-yl)-4-(4-methylpiperidin-1-yl)butan-1-one