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, d, or e without using any additional words.
Options:
a: CCCCN/C(=C1/C=C(Cl)C=CC1=O)c1ccccc1Cl
b: CN(C)C/C=C(/c1ccc(Br)cc1)c1cccnc1
c: O=c1[nH]c2ccccc2n1C1CCN(CCOc2ccccc2)CC1
d: Cc1ccccc1C(OCCN(C)C)c1ccccc1
e: COc1ccc(Cl)c2c1CCCC2N(C)C
Answer: a, b, c, d, e
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}