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, c, or d without using any other words.
Options:
a) C=C(c1ccccc1)C1OCC(NC(=O)Cc2ccccc2)CO1
b) COc1ccc2c(c1)[C@@]13CCCC[C@@H]1[C@@H](C2)N(C)CC3
c) NC(N)=NN=Cc1c(Cl)cccc1Cl
d) CC1NC(=O)C(CC(=O)O)NC(=O)CNC(=O)CNC(=O)C(C)NC(=O)C(Cc2c[nH]c3ccccc23)NC1=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}