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, or d without using any other words.
Options:
a) COc1ccccc1N1CCN(CCCNc2cc(=O)n(C)c(=O)n2C)CC1
b) CCCC(C)C1(CC)C(=O)NC(=S)NC1=O
c) COc1cc([C@@H]2c3cc4c(cc3[C@@H](O[C@@H]3O[C@@H]5CO[C@@H](C)O[C@H]5[C@H](O)[C@H]3O)[C@H]3COC(=O)[C@H]23)OCO4)cc(OC)c1O
d) CN(C)CCC=C1c2ccccc2CCc2ccccc21
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}
6-[3-[4-(6-methoxycyclohexa-1,3,5-trien-1-yl)piperazin-1-yl]propylamino]-1,3-dimethylpyrimidine-2,4-dione