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, c, or d without using any other words.
Options:
a. CN1C(=O)CN=C(C2=CCCCC2)c2cc(Cl)ccc21
b. OC1(c2ccc(Cl)cc2)c2ccccc2C2=NCCN21
c. CC(C)(C)NCC(O)COc1cccc2c1C[C@H](O)[C@H](O)C2
d. OC[C@@H](O)[C@H]1OC2O[C@H](C(Cl)(Cl)Cl)O[C@@H]2[C@H]1O
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}