11.rbo = new ReallyBigObject();
12.//more code here
13.rbo = null;
14./*insert code here*/
Which statement should be placed at line 14 to suggest that the virtual machine expend effort toward recycling the memory used by the objectrbo?()
A.System.gc();
B.Runtime.gc();
C.System.freeMemory();
D.Runtime.getRuntime().growHeap();
E.Runtime.getRuntime().freeMemory();