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] CCCCCCC(N)C(=O)N[C@@H](Cc1ccc(O)cc1)C(=O)N1CCC[C@@H]1C(=O)N[C@@H](Cc1c[nH]c2ccccc12)C(=O)N[C@@H](Cc1ccccc1)C(N)=O
[b] Cc1cn([C@H]2C=C[C@@H](CO)O2)c(=O)[nH]c1=O
[c] CCCCCCC(N)C(=O)N[C@@H](Cc1c(C)cc(O)cc1C)C(=O)N1CCC[C@@H]1C(=O)N[C@@H](Cc1c[nH]c2ccccc12)C(=O)N[C@@H](Cc1ccccc1)C(N)=O
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}
1-[(2R,5S)-5-(hydroxymethyl)-2,5-dihydrofuran-2-yl]-5-methylpyrimidine-2,4-dione