The graphic above represents people and events from which era -revolutionary
The correct answer is "Europe struggled to recover from a lost generation."
After World War I, the Germany economy was in ruins. This is because they were held responsible for the beginning of the war and were forced to pay reparations (as decided in the Treaty of Versailles).
On the other end of the world, the US had a booming economy right after World War I. The 1920's in the US was an era of economic prosperity in which individuals had more disposable income to buy goods/materials.
France and Great Britain still remain allies after this war, as they both have a common goal of recovering from the war and ensuring Germany does not gain significant political power.
This leaves the first statement. The "Lost Generation" is a phrase used to display how a significant amount of the population was lost during the war due to the high number of deaths in World War I.
The single event that most tarnished Ford's presidency was his decision to pardon Nixon. He also, however, presided over the worst US economy since the Great Depression.
The creation of the an army of Turkish warriors to help the Abbasid Caliphs secure their position ultimately led to the conversion of the Turks to Islam, and eventually giving them control over Sunni Islam.
The Abbasid Caliphs were leaders of the "Abbasid Dynasty," which is 2nd of the two great Sunni (Islam) dynasties. Meanwhile, the Seljuk Turks were nomadic people who converted to Islam. Because they were often used as military mercenaries by the Abbasid Caliphate, their power grew, eventually weakening the power of the caliphs, and giving them "control over" Sunni Islam. They revitalized Islamic laws, reorganized the institutions, and provided political stability to the empire.