Task: Please answer the multiple choice question.
Question: Which molecule has the highest Caco-2 cell effective permeability?
Constraint: Even if you are uncertain, you must pick either a, b, c, or d without using any additional words.
Options:
(a) COc1ccc2c(c1)[C@@]13CCCC[C@@H]1[C@@H](C2)N(C)CC3
(b) CC(NC(C)(C)C)C(=O)c1cccc(Cl)c1
(c) CN(C)CCCN1c2ccccc2Sc2ccccc21
(d) C[C@@H]1C[C@H]2[C@@H]3CCC4=CC(=O)C=C[C@]4(C)[C@@]3(F)[C@@H](O)C[C@]2(C)[C@@]1(O)C(=O)CO[C@H]1O[C@@H](C(=O)O)[C@H](O)[C@@H](O)[C@@H]1O
Answer: d
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}