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, or c without using any other words.
Options:
a. CC(=O)Nc1c(I)c(C(=O)O)c(I)c(N(C)C(C)=O)c1I
b. CN(C)C(=O)Oc1cccc([N+](C)(C)C)c1.[Br-]
c. Cc1cccc(C)c1OCC(C)N
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}