An Issue with the Labour Force Survey (LFS)which Overstates the Extent

An issue with the Labour Force Survey (LFS) which overstates the extent of joblessness is

A) individuals who are working but concealing it for legal reasons are counted as unemployed.
B) they verify claims that people have actively looked for work.
C) they tend to count unemployed people more often because they are not working.
D) there is no distinction between employees who work part-time but would like to have a full-time job and those who are content with their full- or part-time job.
E) people who choose not to work are counted as unemployed.