Task: Please answer the multiple choice question.
Question: Which molecule has the highest Caco-2 cell permeability?
Constraint: Even if you are uncertain, you must pick either a, b, or c without using any additional words.
Options:
a: CCN(CC)CCCC(C)Nc1ccnc2cc(Cl)ccc12
b: Nc1c(CC(=O)O)cccc1C(=O)c1ccccc1
c: O=C(O)c1ccccc1
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}