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) S=C(NC1CCCCC1)N1CCC(c2cnc[nH]2)CC1
b) CC(C)[N+]1(C)C2CCC1CC(OC(=O)C(CO)c1ccccc1)C2.[Br-]
c) c1ccc(-c2nc(N3CCNCC3)cc3ccccc23)cc1
Answer: a, 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}