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 other words.
Options:
a) CC[C@@H](CO)NCCN[C@@H](CC)CO
b) CN(C)C(=N)NC(=N)N
c) CN1CCN(C2=Nc3cc(Cl)ccc3Nc3ccccc32)CC1
d) COC(=O)Nc1nc2ccc(C(=O)c3ccccc3)cc2[nH]1
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}
(2S)-2-[2-[[(2S)-1-hydroxybutan-2-yl]amino]ethylamino]butan-1-ol