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, c, or d without using any other words.
Options:
a O=C(CCCCCCC(=O)Nc1ccccc1)NO
b CC(=O)NC(O)CNc1ccc(C(C)=O)cc1
c CNS(=O)(=O)c1ccc(Cl)cc1
d COc1ccc2cc([C@H](C)C(=O)O)ccc2c1
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}