Task: Please answer the multiple choice question.
Question: Which molecules are penetrating the blood brain barrier to reach the brain?
Constraint: You must select none, one or more options from a, b, c, or d without using any other words.
Options:
a. CC[C@H]1OC(=O)[C@H](C)[C@@H](O[C@H]2C[C@@](C)(OC)[C@@H](O)[C@H](C)O2)[C@H](C)[C@@H](O[C@@H]2O[C@H](C)C[C@H](N(C)C)[C@H]2O)[C@](C)(O)C[C@@H](C)/C(=N/OCOCCOC)[C@H](C)[C@@H](O)[C@]1(C)O
b. O=C1CC2(CCCC2)CC(=O)N1CCCCN1CCN(c2ncccn2)CC1
c. CN(C)CCN1C(=O)CC(c2ccccc2)Sc2ccccc21
d. O=c1[nH]c2ccccc2n1C1CCN(CCOc2ccccc2)CC1
Answer: b, c, d
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}