Answer:
D. Sustenance
Explanation:
Livelihood is the course of ones life. Sustenance is the support you gain by food and drinks.
The paragraph suggests that the shepherd wants to put down the dog and end its course of life.
A. Shelter ❌
B. Enjoyment ❌
C. A treat ❌
Answer:
The words scarcity, famine, and abstain are all negative words. Also, scarcity and famine mean a big shortage of food, and abstain means restraining yourself from enjoying something, so maybe this has something to do with that?
Even though I have not read the passage, I think that McGonigal chose those words because they were describing something bad, or talking about something to do with food or a shortage of something.
hope this helps