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 additional words.
Options:
a.) CC(C)CC(N)C(=O)NCC(=O)OC[C@@H]1O[C@H](n2cc(F)c(=O)[nH]c2=O)C[C@H]1O
b.) CC(C)c1c(C(=O)Nc2ccccc2)c(-c2ccccc2)c(-c2ccc(F)cc2)n1CC[C@@H](O)C[C@@H](O)CC(=O)O
c.) CC(C)NCC(O)COc1ccc(COCCOC(C)C)cc1
d.) CC(=O)N[C@H](C)C(=O)NCCc1ccccc1
e.) COc1ccc(-c2oc3c(CC=C(C)C)c(O[C@@H]4O[C@H](CO)[C@@H](O)[C@H](O)[C@H]4O)cc(O)c3c(=O)c2O[C@H]2O[C@H](C)[C@@H](O)[C@H](O)[C@@H]2O)cc1
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}