The plant where Alba works recently unionized, and Alba, a plant employee for six months, is trying to decide whether to become a union member. Which of the following is not a reason some employees join unions?

a. In many industries, union membership is so prevalent that new employees may feel compelled to join.

b. In some states, even those employees who choose not to join a union are required to pay union dues.

c. The absolute guarantee of job security for union workers

d. To establish contact with other workers