1Mediumgeneralโฑ 45sWhat is the difference between a reference and a pointer in C++?๐โผAThey are identicalBA reference must be initialized and cannot be reassigned to refer elsewhere; a pointer can be reassigned and can be nullCA pointer must be initialized; a reference can be nullDReferences use more memory always
2Mediumgeneralโฑ 45sWhich access specifier makes a member accessible only within the class and its friends?๐โผApublicBprotectedCprivateDstatic