The correct answer for 1 is
<span>b. Arabs united under Islam and defeated nearby empires.
Arabs lived in numerous tribes and these tribes were often at war with surrounding people due to various reasons. They decided to united under the banner of Islam to fight and spread their kingdom and religion and this proved to be highly successful.
The correct answer for 2 is </span>
<span>b. weakened Persian and Byzantine rule and
</span><span>c. daring, effective fighting methods
Their armies used technology and strategy that was not common at the time which made them superior to their opponents. The Persian and Byzantine empires were weakened because they were constantly at wars with others and with themselves and this made it easy for Umayyads to rise.
The correct answer for 3 is
</span><span>d. The Umayyads expanded into Spain
When they conquered the entire Northern Africa region they crossed the Gibraltar and entered the Iberian peninsula. This was a crucial thing for the area because Islam became a big thing and Hebrews, Muslims, and Christians lived in the area until the Spanish inquisition decided to end that.</span>
George Goethals was the military engineer who completed construction of the Panama Canal. The correct option among all the options given in the question is option "d". He was appointed the chief engineer of the Panama project by President Roosevelt on 26th of February in the year 1907. Goethals was absolutely determined in seeing through the job that was handed over to him by the President.
To advise the President on domestic and international affairs.
<span>The coup d'etat of South Vietnamese President Ngo Dinh Diem that resulted in his assassination was accomplished by Henry Cabot Lodge, Jr. and the </span>CIA.
Anser is CIA