11. Which operator is used to access a union member when the union is a part of a structure?
12. What happens when you assign a value to one member of a union and then access another member in C?
13. Which keyword is used to define an anonymous structure or union within another structure or union?
14. In a union, which member can you access safely after assigning a value to one of its members?
15. Which type of variable should you use if you want to store different types of data at different times within the same memory location?
16. Which of the following is true about the memory allocation of structures and unions in C?
17. In C, can a structure be passed as an argument to a function?
18. What is the purpose of using a typedef with structures and unions in C?
19. When should you use a structure instead of an array in C?
20. What is the purpose of an anonymous union in C?
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