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, d, or e without using any other words.
Options:
(a) O=C(Nc1cccc(C(F)(F)F)c1)c1nscc1NCc1ccncc1
(b) NS(=O)(=O)c1ccc(C2=C(c3ccccc3)C(=O)OC2)cc1
(c) CC[C@H](C)[C@H](N)C(=O)O[C@@H]1C[C@@H](n2cc(F)c(=O)[nH]c2=O)O[C@H]1CO
(d) CN(C)CCCN1c2ccccc2Sc2ccccc21
(e) CC(C)(NC(=O)c1cc2ccccc2s1)C(=O)N[C@H](Cc1ccccc1)C(=O)NCCCN1CCOCC1
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}