Task: Please answer the multiple choice question.
Question: Which molecule has the highest Caco-2 permeability?
Constraint: Even if you are not sure, you must pick either a, b, c, or d without using any other words.
Options:
[a] CC(=O)N[C@H](C)C(=O)NCCc1ccccc1
[b] O=C(NC1(C(=O)N[C@H](Cc2ccccc2)C(=O)NCCCN2CCOCC2)CCCC1)c1cc2ccccc2o1
[c] CNC(=O)[C@@H](Cc1ccccc1)NC(=O)[C@@H](CC(C)C)NC(C)=O
[d] CNCCC(Oc1ccc(C)cc1)c1ccccc1
Answer: a
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}