In the Context of the Job Characteristics Approach, Skill Variety

In the context of the job characteristics approach, skill variety refers to:

A) the extent to which a worker knows how well the job is being performed.
B) the degree of control a worker has over how the work is performed.
C) the perceived importance of a task.
D) the extent to which a worker does a complete or identifiable portion of the total job.
E) the number of things a person does in a job.