Task: Please answer the multiple choice question.
Question: Which molecule has the highest Caco-2 cell effective permeability?
Constraint: Even if you are not sure, you must pick either a, b, c, or d without using any other words.
Options:
a.) OC[C@@H]1O[C@@](O)(CO)[C@H](O)[C@H]1O[C@@H]1O[C@H](CO)[C@H](O)[C@H](O)[C@H]1O
b.) CC(CO)NC(=O)C1C=C2c3cccc4[nH]cc(c34)CC2N(C)C1
c.) Cc1nnc(SCC2=C(C(=O)O)N3C(=O)[C@@H](NC(=O)Cn4cnnn4)[C@H]3SC2)s1
d.) O=C(O)C[C@H](NC(=O)[C@@H]1CCCN(C(=O)CCC2CCNCC2)C1)c1cccnc1
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}
(3S)-3-[[(3R)-1-(3-piperidin-4-ylpropanoyl)piperidine-3-carbonyl]amino]-3-pyridin-3-ylpropanoic acid