Answer:
the Dalai Lama spiritual leader
The answer is D.
Factor production that could be changed during particular period is called Variable Factor of Productions.
Basically, factor of productions is divided to fixed and variable factor.
FIxed factors are the one that will always stay the same no matter how many products you made. For example electricity cost, building rent, etc
The variable factors differ depend on how product you produce, such as raw material.
The federal government spends more than $20 billion a year on subsidies for farm businesses. About 39 percent of the nation's 2.1 million farms receive subsidies, with the lion's share of the handouts going to the largest producers of corn, soybeans, wheat, cotton, and rice.1
The government protects farmers against fluctuations in prices, revenues, and yields. It subsidizes their conservation efforts, insurance coverage, marketing, export sales, research, and other activities. Federal aid for crop farmers is deep and comprehensive.
However, agriculture is no riskier than many other industries, and it does not need an array of federal subsidies. Farm subsidies are costly to taxpayers, but they also harm the economy and the environment. Subsidies discourage farmers from innovating, cutting costs, diversifying their land use, and taking other actions needed to prosper in the competitive economy.
