Task: Please answer the multiple choice question.
Question: Which molecules are penetrating the blood brain barrier?
Constraint: You must select none, one or more options from a, b, c, or d without using any other words.
Options:
a) CCC(=O)C(CC(C)N(C)C)(c1ccccc1)c1ccccc1
b) C=CCN1CC[C@]23c4c5ccc(O)c4O[C@H]2[C@@H](O)C=C[C@H]3[C@H]1C5
c) CN(C)CC/C=C1/c2ccccc2Sc2ccc(Cl)cc21
d) CC(C)C(=O)OCc1cccc(OC(=O)[C@@H]2N3C(=O)[C@@H](NC(=O)Cc4ccccc4)[C@H]3SC2(C)C)c1
Answer: a, b, c
Task: Please answer the multiple choice question.
Question: Which molecules are {penetrate_BBB#not &NULL}{penetrate_BBB__names__adjective}?
Constraint: You must select none, one or more options from {%multiple_choice_enum%2-5%aA1} without using any {#other|additional!} words.
Options:
{SMILES%penetrate_BBB%}
Answer: {%multiple_choice_result}