Global visibility is: Group of answer choices A visibility type where an object A has a semi-permanent reference to another object B through a class-level field. The visibility persists as long as both A and B exist. A visibility type where an object A receives a reference to an object B as an argument to a method of A. A visibility type where an object A has visibility to B via a singleton or other construct where B can be accessed in any context. The visibility persists as long as both A and B exist. A visibility type where an object A has a reference to an object B within a method of A as a newly declared variable.