Which sentence from the section "What Happens To Political Appointees (Incoming And Leaving)?" explains why the jobs of people who work for the government are important?
A
Thousands of people work for the government.
B
These people help schools, farms and businesses work better.
C
About 9,000 of these people are chosen by the president or his advisers.
D
Most of the people who worked for the last president leave their jobs.
B
These people help schools, farms and businesses work better.