I am system X. I perform secretions inside the body and have ducts. The secretions act at the site of secretion. I have a counter system,i.e., Y and it has exactly the opposite set of properties. Identify me and my counter system.
X - Exocrine system, Y- Endocrine system
X - Endocrine system, X - Exocrine system
Both X and Y- Endocrine system
Both X and Y - Exocrine system