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 other words.
Options:
a. CCC(=O)C(CC(C)N(C)C)(c1ccccc1)c1ccccc1
b. O=C(CCCN1CCC(n2c(O)nc3ccccc32)CC1)c1ccc(F)cc1
c. CCCCc1nc(Cl)c(CO)n1Cc1ccc(-c2ccccc2-c2nnn[nH]2)cc1
d. CN1CCN2c3ncccc3Cc3ccccc3C2C1
e. CN(C)C(=O)CCS[C@H](SCCC(=O)O)c1cccc(/C=C/c2ccc3ccc(Cl)cc3n2)c1
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}
1-(4-fluorophenyl)-4-[4-(2-oxidanylbenzimidazol-1-yl)piperidin-1-yl]butan-1-one