Which of the following pairs is/are correctly matched? Inventor : Invention 1. Christopher Cockerell : Hovercraft 2. David Bushnell : Submarine 3. J. C. Perrier : Steamship Select the correct answer using the code given below:
- (a)1, 2 and 3
- (b)1 and 2 only
- (c)2 and 3 only
- (d)1 and 3 only
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Official answer(b) 1 and 2 only