The Table Below Provides Hypothetical Unemployment,employment,and Labour Force Data for an Economy

The table below provides hypothetical unemployment,employment,and labour force data for an economy over a 3-month period.
TABLE 30-2
-Refer to Table 30-2.Something unusual happened in this country's labour force between January 1 and February 1.What was it?

A) The unemployment rate declined,even though the stock of unemployment remained stable.
B) The labour force grew by one million workers,which represents over 3 percent of the country's total population.
C) The unemployment rate declined because workers left the labour force.
D) The number of workers employed rose,even though workers left the labour force.
E) One million workers (net) left their jobs and also left the labour force.