I am not entirely sure on this one... but the third option is my best guess.
c.) the area looks barren.
Based on the given statement above, in my opinion and own observation, I would say that I agree. People work because they need to sustain their daily needs, and because of that need, most people try to take as much as they can to support it. Giving back becomes little because there is only little that is left from work too. Hope this answers your question.
I would say love and death
Principal,
We will dearly miss you. You have not only made this school great, but you have also made us, the students, great. We thank you for all your hard work and dedication that you put into this school. We wish you farewell and hope you enjoy your retirement.