Task: Please answer the multiple choice question.
Question: Which molecule has the longest 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 other words.
Options:
a: C=C[C@@]1(O)C[N+]2(C)CC[C@H]1C[C@@H]2[C@@H](O)c1ccnc2ccc(OC)cc12
b: C[C@@H]1O[C@@H]1P(=O)(O)O
c: CCOC(=O)C1(c2ccccc2)CCN(C)CC1
Answer: b
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}
[(2R,3S)-3-methyloxiran-2-yl]phosphonicacid