Which of the following best describes what happens when an object no longer has any references pointing to it$?$

Question $4$Select one:

a$.$

The object is overwritten the next time the new operator is called.

b$.$

The object is overwritten the next time the new operator is called using the same class.

c$.$

The object is immediately deleted from memory.

d$.$

The object is marked as garbage and its associated memory is freed when the garbage collector runs.

e$.$

The object stays in memory for the remainder of the program$$s execution.