Answer:
Rafferty thought that he should not be looking at them he did not want the aliens to see him looking at them, so he look slyly at them. It is also indicative of the fact that rafferty suspected them as no ordinary creatures but a fraud.
I passed this a long time ago the answer is the fourth option
Yh use google that would help
The correct answer should be it facilitates communication
Explanation: People use jargon all the time and it can be tiresome if people have to stop talking and explain what the words they're using mean. Especially this applies in a work environment.