Which of These Statements About Contingent Workers Is True

Which of these statements about contingent workers is true?

A) They typically work as a separate, independent group of workers and move from project to project working for the same firm.
B) They are often paid a lower hourly wage than full-time employees doing equivalent work.
C) They are eligible for most company benefits such as vacation, sick pay, and medical insurance.
D) They have neither an explicit nor an implicit contract for continuing employment.