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, d, or e without using any additional words.
Options:
a Nc1c(CC(=O)[O-])cccc1C(=O)c1ccccc1.O.[Na+]
b C[C@H](NC(=O)[C@H](N)Cc1ccccc1)C(=O)N[C@H](CO)C(=O)O
c COc1ccc2c(O[C@@H]3C[C@H]4C(=O)N[C@]5(C(=O)NS(=O)(=O)C6CC6)C[C@H]5/C=C\CCCCN(C)C(=O)[C@@H]4C3)cc(-c3nc(C(C)C)cs3)nc2c1Cl
d CN1CCN(c2c(F)cc3c(=O)c(C(=O)O)cn(CCF)c3c2F)CC1
e O=C(Nc1cccc(OC(F)(F)F)c1)c1nscc1NCc1ccncc1
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}