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, b, c, d, or e without using any other words.
Options:
a Cc1cn([C@H]2C[C@H]([N-][NH+]=N)[C@@H](CO)O2)c(=O)[nH]c1=O
b C=C(C)CNc1ccc(C(C)C(=O)O)cc1
c CC(=O)NCC(=O)NCCc1ccccc1
d C[C@@](N)(Cc1ccc(O)c(O)c1)C(=O)O
e O=C(Nc1cccc(Br)c1)c1nscc1NCc1ccncc1
Answer: d
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}