Answer: C. as intensity increases, time should decrease
Step-by-step explanation:
The correct answer is C) as intensity increases, time should be decreasing and the best example for that is that if our intenisty is increasing when we are doing something, time for that will be decreased because it will take less time than if the intensity stayed normal.
A is an incorrect answer because it would mean that with more job it will take longer and longer to do it.
B is an incorrect answer because it would mean that if we are doing the job with less intensity it would take less time. If intensity decreases time will be increased.
D is incorrect because both of them can change and that is depending on both, person and the job.