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, c, or d without using any other words.
Options:
[a] CN1CCN(C2=Nc3ccccc3Oc3ccc(Cl)cc32)CC1
[b] CC1=C2C(c3cccc(Cl)c3)=NCCN=C2N(C)N1
[c] Cc1ncc(CSSCc2cnc(C)c(O)c2CO)c(CO)c1O
[d] CN1CCN(CC/C=C2\c3ccccc3Sc3ccc(S(=O)(=O)N(C)C)cc32)CC1
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}