line graph entitled ,Consumer Price Index, Between 1960 and 1970 the price index moves from 25 to 40, from 1970 to 1980 the price index moves from 40 to 80 and from 1980 to 1982 the price index moves from 80 to 100.

Based on the graph, which of the following statements is true?

Unemployment was worse than the Great Depression in the 1970s.
Presidents in the 1970s made effective policies to control inflation.
Americans in the 1970s experienced a steep rise in product prices.
Stagflation was the result of the Arab oil embargo in the 1970s.