Hackman and Oldham (1976) developed the job characteristics model (JCM) that includes five core job dimensions in designing jobs.

1. Skill variety is the degree to which a job requires activities including different skills and talents. A professor scores high on this dimension because he/she designs, lectures and schedules exams, does academic work and be thesis advisory. A worker doing hand printing 8 hours in a day scores low in this dimension.
2. Task identity is the degree to which a job requires completion of a whole work. When a shoe retailer designs the shoe, finds the proper raw material, produces and sells it has high score on this dimension, but if another shoe retailer sells the shoes which are bought by the producer has low score on this dimension.

3. Task significance is the extent to which the job has affects the lives or work of other people. A policeman has high task significance (society) because he/she works for the sake of the society; a human resource professional again has high task significance (work) when he/she makes decisions for the well-being of the employees.
4. Autonomy is the degree to which a job provides employee initiative in deciding about work related activities. One example for highly autonomous job can be given below: A product manager schedules her meetings, decides the most effective marketing tool for the product and arranges her management style in accordance with her employees. When a product manager is given a direction to do her job, he/she has low autonomous job.
5. Feedback is the degree to which a job provides direct and objective information about the progress and performance delivered by the supervisor or the job itself. A machine operator receiving direct information about the process receives high feedback. If another machine operator routes his work to other workers, he/she receives low and indirect feedback. The correct answer is Choice C.