Tech A says that most brake fluids absorb water from the atmosphere. Tech B says that brake fluid should be changed every two to four years. Who is correct?

A "No Discharge Zone (NDZ)" or area is a designed body of water that prohibits the discharge of treated and untreated boat sewage. Federal Law prohibits the discharge of untreated sewage from vessels within all navigable waters of the U.S., which include territorial seas within three miles of shore