Which of the following statements is false?

a. Names for structure types are often defined with typedef to create more readable type names.
b. The statement
typedef Card* CardPtr;
defines the new type name CardPtr as a synonym for type Card*.
c. Creating a new name with typedef does not create a new type; typedef simply creates a new type name that can
then be used in the program as an alias for an existing type name.
d. C++11 added the keyword using as another mechanism for creating type aliases. The following declaration is
equivalent to the typedef in part b):
using Card* = CardPtr;

d. C++11 added the keyword using as another mechanism for creating type aliases. The following declaration is
equivalent to the typedef in part b):
using Card* = CardPtr;