Which of the Following Is True About Classes and Structs

Multiple Choice

Which of the following is true about classes and structs?

A) By default, all members of a struct are public and all members of a class are private.
B) A struct variable is passed by value only, and a class variable is passed by reference only.
C) An assignment operator is allowed on class variables, but not on struct variables.
D) You cannot use the member access specifier private in a struct.