Task: Please answer the multiple choice question.
Question: Which molecule has the highest Caco-2 cell permeability?
Constraint: Even if you are uncertain, you must pick either a, b, c, d, or e without using any additional words.
Options:
a. O=C(Nc1cccc(OC(F)(F)F)c1)c1nscc1NCc1ccncc1
b. CC#Cc1cn([C@@H]2O[C@H](CO)[C@@H](O)[C@@H]2O)c(=O)[nH]c1=O
c. CNC1(c2ccccc2Cl)CCCCC1=O
d. CC(CN1c2ccccc2Sc2ccccc21)N(C)C
e. O=C(CO)N1CCN(c2ccc(N3C[C@H](CNC(=S)C4CC4)OC3=O)cc2F)CC1
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}