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. CNS(=O)(=O)Cc1ccc2[nH]cc(CCN(C)C)c2c1
b. C[C@H](Cn1cnc2c(N)ncnc21)OCP(=O)(O)O
c. COc1ccccc1N1CCN(CCCNc2cc(=O)n(C)c(=O)n2C)CC1
d. CS(=O)(=O)OCCCCOS(C)(=O)=O
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}
6-[3-[4-(6-methoxycyclohexa-1,3,5-trien-1-yl)piperazin-1-yl]propylamino]-1,3-dimethylpyrimidine-2,4-dione