Question: (a) What does the virtual keyword do in C++? [2 marks] 3 marks] 2 marks] (b) i. What is the key benefit of polymorphism? ii.

(a) What does the virtual keyword do in C++? [2 marks]

(a) What does the virtual keyword do in C++? [2 marks] 3 marks] 2 marks] (b) i. What is the key benefit of polymorphism? ii. What are the main disadvantages of polymorphism? (c) How could you use pointers to objects to avoid the object slicing prob- lem? Briefly explain object slicing as part of your answer. 3 marks]

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