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, or c without using any other words.
Options:
a.) C=CCN1C(=O)C(CC(C)C)NC1=S
b.) CC1(C)S[C@@H]2[C@H](NC(=O)[C@H](NC(=O)Nc3cnc(Nc4ccc(S(N)(=O)=O)cc4)[nH]c3=O)c3ccc(O)cc3)C(=O)N2[C@H]1C(=O)O
c.) CCC(=O)C(c1ccccc1)(c1ccccc1)C(C)CN(C)C
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}