Answer:
Cell phone - convenient communication
Industrial robot - reduction of human work-load
Power tool - faster construction
Explanation:
The cell phone one is obvious. Not so obvious is which of the remaining two goes with which. The industrial robot goes with less human work becasue industrial implies a factory, and robot means it is probably replacing humans. The remaining two also make sense together, because power tools do make construction much faster.
The Bedouin people are Arab nomadic tribes, living today in Egypt, southern Israel, Jordan and Saudi Arabia. They have been living their way of life pretty much in the same way since the pre-Islamic age.
I believe your answer is A.. good luck my friend!
