I think it’s the letter D) history
The correct answer is over Congress’ objections
Explanation: California has become the only American state. The completion of the transcontinental railroad in 1869, moreover, left the state of its isolation, and the bet to the point of agriculture was established on irrigation and on the use of cheap cheap seasonal labor quickly. California's first agricultural producer. Further, an oil discovery and exploration triggered a new influx of population, an exponential demographic growth that allowed San Francisco to become yet another large Pacific Coast city from 1890. In 1906, it was destroyed by an earthquake .
The Mississippi River has historically been extremely important for the growth of the United States. Since it connects such large parts of the US, it was used for trade and ships would go through it all the time with goods which was great for the economy. Goods could also come to New Orleans from Europe and be taken north all the way as up as Minnesota.
The two oceans were very beneficial in various ways to the United States. For example, the large bodies of water could be used as natural defense against foreign incursions since in early colony days it was not possible to sustain an army that would have to attack the US. They were also great source of resources such as food. Whaling was historically particularly important for the development of the regions around the oceans.
The great plains have historically been really important for the economy because it was the primary area in which cattle ranching was developed. Because of the vast fields cattle could be grown there easily and in large numbers and this are provided food for most of the United States while also benefiting the economy from successful business endeavors.
Abundant natural resources make it possible for the United States to manufacture goods and to also trade with other nations. Since the US has so many various things, from food to minerals to mines to pretty much anything, they are self-sufficient to themselves and don't have to rely on trading partners if they don't want to.
Knoxville was the first capital city of Tennessee. And Nashville is the current capital.
The correct statement is - A. The Arab Empire unified feuding tribes under the religion of Islam.
The emergence of the new faith, Islam, on the Arabian Peninsula was the key factor that contributed to the unification of the multiple feuding tribes in the region, Under the Islam, they all worshiped the same God, had the same holly book, and had the same prophet in Muhammad, and this was more than enough that all of the tribes unite, use the situation where the Sassanid and Byzantine Empires were military and financially exhausted, and managed to spread on vast space, making one of the biggest empires, and using it to spread out the Islam as well.