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 additional words.
Options:
a) O=C1C[C@H]2SC(C3(O)CN4C(=O)C[C@H]4S3)CN12
b) CC(C)CC(N(C)C)C1(c2ccc(Cl)cc2)CCC1
c) Cc1ccc(Cc2ccccc2)c(N2CCNCC2)c1
d) CN(C)CCn1cnc2c1c(=O)n(C)c(=O)n2C
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}