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 additional words.
Options:
(a) O=C1CC[C@H](C(=O)N2CCCCC2)N1
(b) OCCN1CCN(CC/C=C2/c3ccccc3Sc3ccc(Cl)cc32)CC1
(c) O=C(CCCN1CC=C(n2c(=O)[nH]c3ccccc32)CC1)c1ccc(F)cc1
(d) OC(c1ccccc1)(c1ccccc1)C1CCCCN1
Answer: a, 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}