Task: Please answer the multiple choice question.
Question: Which molecule has the longest drug half life time 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 other words.
Options:
a CO[C@H]1/C=C/O[C@@]2(C)Oc3c(C)c(O)c4c(O)c(c(/C=N/N5CCN(C)CC5)c(O)c4c3C2=O)NC(=O)/C(C)=C\C=C\[C@H](C)[C@H](O)[C@@H](C)[C@@H](O)[C@@H](C)[C@H](OC(C)=O)[C@@H]1C
b CCCC(C)(COC(N)=O)COC(N)=O
c OC(CCN1CCCC1)(c1ccccc1)C1CCCCC1
d O=P(O)(O)C(O)(Cn1ccnc1)P(=O)(O)O
e O=C1CN=C(c2ccccc2Cl)c2cc([N+](=O)[O-])ccc2N1
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}
1-cyclohexyl-1-phenyl-3-pyrrolidin-1-ylpropan-1-ol