I don’t understand the question
The Portuguese made an expedition to Otranto, Italy in 1481 after the conquest of constantinople, the so called "Cruzada Turca". Pope Sixtus IV called for a crusade against the Turks, who occupied Otranto in southern Italy. The Pope's intention was to cross the Adriatic and liberate Vlorë (Valona) as well.
Portugal sent a squadron into Otranto under command of the bishop of Évora, Garcia de Meneses.
By the time the Portuguese reached Naples, the Ottomans had already withdrawn, because the Sultan of the Ottoman Empire, Mehmed II, had died, which made it easier for the Portuguese to have another italian city.
The correct answer is: A. Manufacturing goods with interchangeable parts
Manufacturing goods with interchangeable parts was made possible after Eli Whitney envisioned an entire system for transforming a craft performed by skilled artisans into a process performed by unskilled workers. This means each worker would do just one thing.
D. Untouchables because they were at the bottom
Answer: b. New weaponry and technology did not address the stalemate of trench warfare, prolonging the war and leading to the massive loss of human lives.
World War I introduced many modern warfares which include airplanes, tanks, trench warfares and other weapons. Along the western front, most of the war was fought using trench warfare. Both sides dug long lines of trenches to protect the soldiers from gunfires and the area between the trenches was called No Man's Land. Trench warfares prolonged the war which led to the loss of millions of soldiers.