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, or c without using any other words.
Options:
a: COc1ccc2c3c1OC1C(OC(=O)c4cccnc4)CCC4C(C2)N(C)CCC341
b: c1ccc(C2CCN(CC3CCCc4c3ccc3c4OCO3)C2)cc1
c: CCNC1(c2ccccc2)CCCCC1
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}