The correct answer is <span>b. a large, airy room inside the main entrance of a wealthy Roman's home
They were rather common, and still are, being incorporated by many modern architects as well as Romans.</span>
The correct option is D.
Thomas Edison was an American investor and business man and he had been described as the American greatest inventor, because during his life time he accumulated 1,093 patents. He is the brain behind many devices which had radically changed the way people live their lives today. The devices invented by him include: phonograph, light bubs, moving pictures, electrographic vote recorder, the carbon telephone transmitter, etc.
World War I took the United States out of a recession into a 44-month economic boom. 30 Before the war, America had been a debtor nation. After the war, it became a lender, especially to Latin America. U.S. exports to Europe increased as those countries geared up for war.
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