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 not sure, you must pick either a, b, c, or d without using any additional words.
Options:
a) O=C(O)CCCc1ccc(N(CCCl)CCCl)cc1
b) CC1=C(C(=O)O)N2C(=O)[C@@H](NC(=O)[C@H](N)c3ccccc3)[C@H]2SC1
c) CC(=O)Oc1ccccc1C(=O)O
d) c1ccc(C2(N3CCCCC3)CCCCC2)cc1
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}