One Shortcoming of the Official Unemployment Rate Is That

One shortcoming of the official unemployment rate is that:

A) it is very stable through recessions and is unreliable as an economic indicator.
B) it includes only workers who have no job and are actively seeking work.
C) it accounts for underemployed workers and discouraged workers.
D) it only indicates the length of unemployment.
E) it is unreliable because it is easily manipulated by the government.