The answer is: [A]: "a pronoun contraction" .
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Note: In this case, the word, "It's", is a pronoun contraction for: "It is" .
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It’s a triangle in an ocean that many boats and people have gone missing and no one have found them
There's many predictions on how King Tutankhamun died one of the reasons in my opinion I think King Tutankhamun died from a chariot crash because one side of his body was crush also on his knees. He shattered his pelvis and ribs, and he was crushed so badly on his heart that it was unsalvageable for mummification.
I believe that distance plus sound equals the sound pressure level, but i could be wrong