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] Oc1cccc2ccccc12
[b] CN(C)CC/C=C1/c2ccccc2COc2ccc(CC(=O)O)cc21
[c] CC(C)CC(NC(=O)CN)C(=O)OC[C@@H]1O[C@H](n2cc(F)c(=O)[nH]c2=O)C[C@H]1O
[d] O=C(NC1(C(=O)N[C@H](Cc2ccccc2)C(=O)NCCCN2CCOCC2)CCCC1)c1cc2ccccc2o1
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}