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, or d without using any additional words.
Options:
a.) CN1CCN(c2c(F)cc3c(=O)c(C(=O)O)cn(CCF)c3c2F)CC1
b.) COC(=O)c1c(Cl)cc(Cl)cc1-c1ccc([C@@H](C)NC(=O)C2(NC(=O)C(F)(F)F)CC2)c(F)c1
c.) CCC(C)C(N)C(=O)OC[C@@H]1O[C@H](n2cc(F)c(=O)[nH]c2=O)C[C@H]1O
d.) COC(=O)c1c(F)cc(Cl)cc1-c1ccc([C@@H](C)NC(=O)C2(NC(=O)C(F)(F)F)CC2)c(F)c1
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}