Answer:
Both the ROC and the PRC still officially (constitutionally) claim mainland China and the Taiwan Area as part of their respective territories. In reality, the PRC rules only Mainland China and has no control of but claims Taiwan as part of its territory under its "One China Principle".
Explanation:
 
        
             
        
        
        
Also known as the Seven Years’ War, this New World conflict marked another chapter in the long imperial struggle between Britain and France. When France’s expansion into the Ohio River valley brought repeated conflict with the claims of the British colonies, a series of battles led to the official British declaration of war in 1756. Boosted by the financing of future Prime Minister William Pitt, the British turned the tide with victories at Louisbourg, Fort Frontenac and the French-Canadian stronghold of Quebec. At the 1763 peace conference, the British received the territories of Canada from France and Florida from Spain, opening the Mississippi Valley to westward expansion.
        
             
        
        
        
The united states power was continuing to grow in the international arena. Previous decades had seen the USA  emerge as one of the industrialized country which implied that it could not remain isolated as a result of the dynamics of international commerce. The USA had to protect its interests in the global arena especially trade.
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Answer: B. Millions of acres were transformed from desert to farmland, with migrant workers fulfilling the need for labor. 
After the passage of the Newlands Reclamation Act of 1902, which encouraged irrigation projects for the arid lands of 20 states in the American west, Southwestern agriculture shifted from a ranch-based economy to seasonal commercial agriculture using migratory workers. This expansion could not have occurred without low-cost labor from <em>Mexico</em>.
The nature of employment in the Southwest in commercial agriculture, carried extreme consequences for the lives of <em>Mexican immigrants. </em>Many worked as migratory farm laborers and they tended to live in segregated neighborhoods, most of them were unskilled laborers.