Some Professionals Have Become Concerned About Lower-Level Security Workers Because

Some professionals have become concerned about lower-level security workers because:

A) such positions have a high turnover rate.
B) the pay rate is generally low.
C) low-level workers may be people who cannot find employment elsewhere.
D) all of the above are concerns regarding lower-level security workers .
E) none of the above are concerns regarding lower-level security workers .