"Nationally, the monthly survey of American households found 387,000 more

people at work in February than in January, but many of the new jobs were only

part time, the Labor Department reported."

From this information we can conclude that:

a) unemployment has risenb) unemployment has fallen

c) unemployment has remained constant

d) nothing can be said about unemployment

my question: Is this 387000 people counted as labor force? Are they considered when calculating unemployment?