D Question 21 Which of the following is correct about Garbage Collection? O You can call GC.Collect) directly O GC.Collect is nondeterministic O GC will run when system resources permit O Supports a finalization phase for your objects o All of the Above O None of the Above D Question 22 In NET Garbage Collection, which of the following is correct about Destructors? O it is the opposite of a constructor O cannot be used with structs O cannot be overloaded or inherited O it takes no modifiers or parameters O All of the Above O None of the Above D Question 23 An object graph is a set of objects that reference one another. Because of this an object graph is a memory only construct and cannot be serialized. O True False