Answer:
B They worked hard to succeed
Explanation:
Thanks for the points
During the eight years between Iraq's formal declaration of war on September 22, 1980, and Iran's acceptance of a cease-fire with effect on July 20, 1988, at the very least half a million and possibly twice as many troops were killed on both sides, at least half a million became permanent invalids, some 228 billion
They invested in the inventors which prompted many people to take up inventing