In a reference count method of garbage collection, each cell c has a counter field whose value indicates how many other cells refer (point) to it. The counter is incremented every time another cell...

In a reference count method of garbage collection, each cell c has a counter field whose value indicates how many other cells refer (point) to it. The counter is incremented every time another cell refers to c and decremented if a reference is deleted. The garbage collector uses this counter when sweeping the heap: If a cell’s count is zero, the cell can be reclaimed because it is not pointed to by any other cell. Discuss the advantages and disadvantages of this garbage collection method.