To answer this question we need to look at each statement:
Secrete (release) enzymes: in this case is more propper of the digestive system since its function is to break food into usable nutrientes by the cells in the body.
Produce hormones (testosterone/estrogen): This is actually part of the endocrine system, that is in charge to produce and regulating hormone production.
Digest (break down) proteins: This is also part of the digestive system, as it was mentioned before their function is to break food into nutrients.
Transporting (moving) materials: This is correct, the circulatory system has the function to transport materials in and out of cells.