Farming and Crafting I don really know don use that answer lol
The red scare was used to describe the period where the fear of communism was rampant in the US... later macarthyism
The correct answer is B. Consumer Price Index.
It is great for showing the development of inflation. The remaining two are most commonly the employment rate, and the famous GDP which shows the production of a country. Unlike the GDP, the CPI focuses more on consumers and less on the economy.
Global warming. Not sure if that's one of the answer choices or if it's more technical than that.