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, or c without using any additional words.
Options:
a. C[C@@H](O)[C@H]1C(=O)N2C(C(=O)O)=C(S[C@H]3C[C@@H](C(=O)N4CC[C@H](NC(=O)CNC(=N)N)C4)N(C)C3)[C@H](C)[C@H]12
b. CN(C)CCNc1ccc2c3c(nn2CCNCCO)-c2cnccc2C(=O)c13
c. O=C(O)CCNC(=O)c1ccccc1
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}