Isaac Peral was a Spanish naval officer and engineer who designed what innovative naval vessel in 1888?
Answer and explanation
Correct answer: D. electric submarine
- Step 1: According to the official source: Isaac Peral y Caballero (1 June 1851, in Cartagena – 22 May 1895, in Berlin ), was a Spanish engineer, naval officer, and designer of the submarine Peral . ... He joined the Spanish Navy in 1866, and developed the first electric -powered submarine which was launched in 1888. Answer: electric submarine. Why not the others: steam frigate, torpedo boat destroyer, and armored cruiser are other historic naval military vessels developed in the late 19th century.
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