Which of the following is/are true?
A. A static in C is a variable that is constant and does not change.
B. A static variable is stored on the stack.
C. A static variable defined within function Func1 can be accessed from outside Func1 by other functions.
D. A static variable defined within function Func1 holds its value after Func1 finishes. The next time Func1 starts the old value of the static variable is still available.