Economics

Pakistan's largest export sector is textiles, which includes garments, cotton yarn, and fabrics. This sector contributes the most to the country's export earnings compared to oil, gold, or other categories.

Safety stock refers to the extra quantity of grains held by the government to protect against uncertainties in supply and demand, which is known as buffer stock. This helps stabilize prices and ensure food security.

Alauddin Khilji's economic policies prominently focused on strict market control to stabilize prices and ensure supplies for his large standing army and the general populace. He implemented price controls on essential commodities such as grains, cloth, horses, cattle, and slaves by fixing prices, establishing state-run markets, appointing market controllers (Shahna-i-Mandi), and enforcing regulations against hoarding and black marketing. These measures were aimed at regulating the market rather than promoting free market activity, making 'Market control' the most important economic feature of his economic measures.

In foreign currency dealings, 'Kerb' refers to the exchange rates of currencies traded in the open market, outside official channels. This distinguishes it from official rates set by authorities like the State Bank.

The official currency of Jamaica is the Jamaican Dollar, abbreviated as JMD or J$, and symbolized by the dollar sign $. Although the option 'Dollar' does not specify 'Jamaican Dollar,' it is the correct currency type for Jamaica. Options A (Pound) and B (Peso) are incorrect, and option D (None of these) is incorrect because 'Dollar' correctly identifies the currency type. Therefore, the correct answer is C.

In 2010, the United States had the largest economy in the world by nominal GDP, surpassing other countries such as Japan, China, and India.

In 2010, the third biggest economy in the world by nominal GDP was Japan, following the United States and China. India ranked lower than Japan at that time.

As of January 2010, Japan was the second largest economy in the world by nominal GDP, after the USA. India was ranked lower at that time, and "None of these" is incorrect.

In 2016, the United States was the world's largest economy with a nominal GDP of approximately $18.6 trillion. China was the second largest economy with a GDP of about $11.2 trillion. Therefore, China did not become the biggest economy in 2016. The question as posed is flawed because the correct answer (United States) is not listed among the options. Among the given options, China was the second largest economy in 2016, but it was not the biggest. The question should be corrected to reflect that the United States was the biggest economy in 2016, or the options should include the United States to be accurate.