Question 1

Select all that apply.

• A.

  All the variables on the stack (in any activation record) are said to be in scope.

• B.

  The lifetime of a variable is the duration that it spends in the topmost activation record in the stack.

• C.

  Every activation record has a control link that points to start of previous record.

• D.

  Every activation record has a return value link that points to where to store return value.