Which of the Following Is a Positive Statement

Multiple Choice

Which of the following is a positive statement?

A) Taxes should be lower because then people get to keep more of what they earn, so they will work more.
B) My economics class should last for two terms because it is my favorite class.
C) A 10 percent increase in income leads to a 4 percent increase in the consumption of beef.
D) Given their negative impact on productivity, the government should eliminate labor unions.
E) The class average on this test should be more than 80 percent.