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 or b without using any other words.
Options:
a OC(CCN1CCCC1)(c1ccccc1)C1CCCCC1
b CCOc1ccc(/C=C2\NCCc3cc(OCC)c(OCC)cc32)cc1OCC
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}
1-cyclohexyl-1-phenyl-3-pyrrolidin-1-ylpropan-1-ol