Task: Please answer the multiple choice question.
Question: Which molecule has the highest Caco-2 cell effective permeability?
Constraint: Even if you are uncertain, you must pick either a or b without using any additional words.
Options:
a: CC(=O)Nc1ccc(O)cc1
b: CC(C)(C)C(=O)OCOC(=O)N1CCC(N2CCN(CC(=O)c3ccc(OCC(=O)OC4CCCCC4)cc3)C(=O)C2)CC1
Answer: b
Task: Please answer the multiple choice question.
Question: Which molecule has the highest {permeability__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%permeability%}
Answer: {%multiple_choice_result}