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, or c without using any other words.
Options:
a NCCCC[C@H](N[C@@H](CCc1ccccc1)C(=O)O)C(=O)N1CCC[C@@H]1C(=O)O
b Nc1ccn([C@@H]2CS[C@H](CO)O2)c(=O)n1
c O=c1[nH]c(=O)n([C@H]2O[C@@H](CO)[C@H](O)[C@H]2O)cc1/C=C/Br
Answer: c
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}