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) COc1cc(C(=O)OCCN2CCN(CCCN3c4ccccc4Sc4ccc(Cl)cc43)CC2)cc(OC)c1OC
(b) CC(=O)OCC(=O)[C@@]1(OC(=O)c2ccco2)[C@H](C)C[C@H]2[C@@H]3CCC4=CC(=O)C=C[C@]4(C)[C@@]3(F)[C@@H](O)C[C@@]21C
(c) CCN(CC)c1ccc(NC(=O)c2ccccc2N)c(C)c1
(d) CN(C)CC(O)C(c1ccccc1)c1ccc(Cl)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}