Task: Please answer the multiple choice question.
Question: Which molecule has the highest Caco-2 cell permeability?
Constraint: Even if you are not sure, you must pick either a, b, or c without using any additional words.
Options:
a: CC[C@H](C)[C@H](N)C(=O)O[C@@H]1C[C@@H](n2cc(F)c(=O)[nH]c2=O)O[C@H]1CO
b: COC(=O)c1c(F)cc(Cl)cc1-c1ccc([C@@H](C)NC(=O)C2(NC(=O)C(F)(F)F)CC2)c(F)c1
c: CCN(CC)CCCC(C)Nc1ccnc2cc(Cl)ccc12
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}