C. Why target market trade is executed

Target market is strategy in which a company offers its product in specific market only. This strategy enables the business to reach its customers through marketing efforts. The target market trade refers to trading in certain markets only to ensure the limited availability of products. The organization who want do not want to market its products through wholesalers or retailer choose such strategy.

Explanation:

The target marketing reduces the marketing cost to business as they only market their product in specified markets. They only target those customers who are genuinely willing to buy company's product. This strategy rewards its customers of buying the genuine product at a reasonable price as there will be no extra cost charged to them. The price charged to customers is the price set by the business itself for the product.

  b.

there are isolated pockets of farming, generally around rivers and oases, which are used for irrigation.