The contributions of this man, more than any other, the u.s. navy become the third strongest naval power at the turn of the nineteenth century.

a.william seward
b.theodore roosevelt
c.alfred thayer mahan
d. frederick jackson turner

The answer is C.

Explanation:

Alfred Thayer Mahan (1840-1914) conceived the idea that sea power was the key to a strong foreign policy. His thinking is behind the building and strengthening of the US Navy, dominating American naval planning. He was so influential that his ideas led to a race among powers to have powerful navies in the 19th and the 20th centuries.

C. Being grateful, which is shown by Crusoe thanking God for his survival

Explanation:

Robinson Crusoe is one of the most famous works of the famous English writer Daniel Defoe, published in 1719 and considered the first English novel. It is a fictional autobiography of the protagonist, an English castaway who spends 28 years on a remote desert island.

Probably the story was inspired by real events that occurred to Alexander Selkirk, from where he would construct, with a simple and authentic plot, a symbol of colonialism, of the perfect man and of the supreme morality.

Robinson Crusoe is the classic adventure novel by antonomasia. Although usually this work is known simply by the name of the protagonist, the original title, as it appears on the cover of its first edition is:  

"The life and incredible adventures of Robinson Crusoe, of York, sailor, who lived twenty-eight years completely alone in an uninhabited island in the coasts of America, near the mouth of the great Orinoco river; having been dragged to shore after a shipwreck, in which all men died but him. With an explanation of how in the end it was unusually released by pirates. Written by himself"