1. 

A union cannot be nested in a structure

A. True
B. False

2. 

Nested unions are allowed

A. True
B. False

3. 

Bit fields CANNOT be used in union.

A. True
B. False

4. 

one of elements of a structure can be a pointer to the same structure.

A. True
B. False

5. 

A structure can be nested inside another structure.

A. True
B. False