Quiz submission record for quiz2-1-1 at Sun Jun 27 21:18:43 2004: Your Answer for Question 1: a, since malloc allocates memories to variables Your Answer for Question 2: a, since free deallocates memories that are not used Your Answer for Question 3: malloc -> new free -> no explicit free Because it would use lots of memory Your Answer for Question 4: NO, we cannot use the reference count method since this structure is circular YES, this method can be used Your Answer for Question 5: it's interesting to see the internal structure of memory Your unique submission ID is quiz2-1-1-cs61c-by-1088396323-2290.