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 uncertain, you must pick either a, b, c, d, or e without using any additional words.
Options:
a.) CCC1CN2CCC1CC2[C@@H](O)c1ccnc2ccc(OC)cc12
b.) CCCCC(=O)N(Cc1ccc(-c2ccccc2-c2nnn[nH]2)cc1)[C@H](C(=O)O)C(C)C
c.) O=C(O)c1cc(/N=N/c2ccc(O)c(C(=O)O)c2)ccc1O
d.) COc1cc2c(cc1OC)CN(c1cc(N)c3cc(OC)c(OC)cc3n1)CC2
e.) O=C1c2cccc3c2[C@H](CCC3)CN1[C@@H]1CN2CCC1CC2
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)-3-methyl-2-[pentanoyl-[[4-[2-(1H-1,2,3,4-tetrazol-5-yl)phenyl]phenyl]methyl]amino]butanoicacid