Final Cumulative 16) When mixed with a class, dynamic memory requires the definition of three methods A) the default constructor B) the destroy methood C) the destructor D) the copy constructor E) an operator- 17) Which of the following operators must be member functions? A) operator& B) operator- C) operator?: D) operatorO E) operator[ 18) Which of the following operator overloads must be non-member functions? A) operator with left-hand class object and right-hand built-in type argument B) operator with left-hand built-in type argument and right-hand class object C) operator-for post-fix operation D) operator with left-hand built-in type argument and right-hand class object E) operator++ for enumeration type 19) Which of the following is a proper skeleton for an operator-? A) Class & B) Class Class::operator-(const Class & c) Class: :operator-(const Class & c) destroyO: dynset (c): nondynset(c); return *this; destroyO: dynset (c) nondynset(c) return this; C) Class & D) Class & Class::operator-(const Class &c) Class::operator-(const Class & c) if ("this!c) if (this !- &c) destroyO dynset (c); nondynset(c); destroy O dynset (c); nondynset (c); return *this; return *this; E) Class & operator-(Class&m, const Class & c) if (8m&c) m.destroyO