Asalesperson who is intrinsically motivated (a) is motivated by the rewards that the job provides.(b) is motivated by the need for love and belongingness.(c) finds the job to be inherently rewarding.(d) finds that the job's fringe benefits, pay, and generous vacation policy provide motivation.(e) works for the feeling of security offered by the job.

the correct answer is C. finds the job to be inherently rewarding

Explanation: an intrinsically motivated salesperson likes his/her job and it is motivated because he/she likes what he/she is doing on a daily basis.

this null effect is caused by a weak manipulation and ineffective internal validity. in a scientific study, as the one dr. morimoto is trying to perfom, internal validity refers to the confidence placed in the cause-effect relationship and to how well an experiment is done and able to eliminate confounding variables.        

answer; scientific;