Some recent Object-oriented languages such as Java and C#, contain both "int" and "Integer" data types. Which one of the following statements is correct about this subject?

a)Integer is a primitive type.

b)Both types are the same and require the same amount out storage.

c)int is the wrapper type for Integer. It wraps the primitive into an object.

d)Integer is an object type and is passed by reference to subprograms.

e)None of the above.