Task: Please answer the multiple choice question.
Question: Which molecule has the highest Caco-2 cell effective permeability?
Constraint: Even if you are not sure, you must pick either a, b, c, or d without using any other words.
Options:
a: CCC(C(=O)O)c1ccc(N2Cc3ccccc3C2=O)cc1
b: CCC(C(=O)O)c1ccc(N2Cc3ccccc3C2=O)cc1
c: CC/C(=C(/c1ccccc1)c1ccc(OCCN(C)C)cc1)c1ccccc1
d: Cc1ccnc2nc(Cc3nc4ccc(C(=N)N)cc4[nH]3)[nH]c12
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}
2-[4-(3-oxo-1H-isoindol-2-yl)phenyl]butanoic acid