Option 1 states that all three pairs are correct. Christopher Cockerell was indeed the inventor of the Hovercraft. David Bushnell invented the Submarine while J. C. Perrier is known for the Steamship. Hence, this is the correct option.

Option 2 suggests that only pair I (Christopher Cockerell - Hovercraft) and II (David Bushnell - Submarine) are correct, ignoring the fact that J.C Perrier did indeed invent the Steamship.

Option 3 includes pair II (David Bushnell - Submarine) and pair III (J.C. Perrier - Steamship), but excludes pair I (Christopher Cockerell - Hovercraft), which is not correct as Cockerell was the inventor of the Hovercraft.

Option 4 pairs I (Christopher Cockerell - Hovercraft) and III (J.C. Perrier - Steamship) as the correct ones, but excludes David Bushnell, the inventor of the Submarine.

So, only Option 1 correctly matches all inventors to their respective inventions.