Answer:
C. An open system: Changes in the task environment affect the general environment, and changes in the general environment affect the task environment.
Explanation:
Suppose that the general enviroment is the whole office building, and the task enviroment is your cubicle, and the four other cubicles surrounding you.
If the task enviroment in your area becomes dirty and unpleasant, the working conditions of you and your four colleagues will deteriorate, probably causing loses in productivity, affecting the company's productivity as a whole. Besides, if the task enviroment is not cleaned soon, the dirt will spread to other areas inside the building, affecting the general enviroment.
The general enviroment affects more easily the task enviroment. Simply imagine if the HVAC system of the office building fails: your task enviroment will not have heating or cooling and working conditions will become difficult.