Which Statement Best Describes the Relationship Between Base Class and Derived

Multiple Choice

Which statement best describes the relationship between base class and derived class types

A) A derived class reference cannot be assigned to a base class variable and a base class
Reference cannot be assigned to a derived class variable.
B) A derived class reference can be assigned to a base class variable and a base class
Reference can be assigned to a derived class variable.
C) A base class reference can be assigned to a derived class variable,but a derived class
Reference cannot be assigned to a base class variable.
D) A derived class reference can be assigned to a base class variable,but a base class
Reference cannot be assigned to a derived class variable.