Task: Please answer the multiple choice question.
Question: Which molecule has the highest Caco-2 cell effective permeability?
Constraint: Even if you are not sure, you must pick either a, b, or c without using any additional words.
Options:
a Oc1cc(O)c2c(c1)O[C@H](c1ccc(O)c(O)c1)[C@H](O)C2
b COc1ccc2cc(C(C)C(=O)[O-])ccc2c1.[Na+]
c CC(=O)NCC(=O)NCCc1ccccc1
Answer: c
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}