Which of the following statements about today's job search is correct?

a$.$ Career paths for employees are now linear; that is$,$ employees can expect to remain in the same position throughout their employment years.

b$.$ The emphasis of today's job search is on the needs of the employer.

c$.$ Jobs are long lasting; therefore, today's employees will need little relearning and retraining.

d$.$ Today's job searchers should create a universal r$$sum$$ that can be used for every job for which they apply.