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Declarations and Initializations - Programming

Q1:

Which of the following is correct about err used in the declaration given below? 
 typedef enum error { warning, test, exception } err;

A
It is a typedef for enum error.

B
It is a variable of type enum error.

C The statement is erroneous.

D It is a structure.

ANS:A -

It is a typedef for enum error.

A typedef gives a new name to an existing data type.
So err is a new name for enum error.