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 uncertain, you must pick either a, b, c, or d without using any other words.
Options:
a. CCN(CCO)CCCC(C)Nc1ccnc2cc(Cl)ccc12
b. CCN(CC)CCNC(=O)c1ccc(N)cc1
c. CCN(CC)C(=O)/C(C#N)=C/c1cc(O)c(O)c([N+](=O)[O-])c1
d. CC(C)NCC(O)COc1ccc(COCCOC(C)C)cc1
Answer: d
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}