Answer:
A as c doesn't make sense and b has to have a sentence before it to make sense, therefore d is also incorrect.
Answer:
C.
Explanation:
All the others are negative.
A suggests losing sleep.
B suggests a problem when you're away.
C tells you a benefit of walking a dog.
D tells you it's expensive.
Only C tells you a good thing about having a pet.
Because they're other people who might need it, it's like how you shouldn't waste your food.
I think the best answer is B. Revising means refining a piece by eliminating errors and improving clarity, while editing means improving the overall quality of a piece by changing parts of it.
