The answer is D. donated. The adverb in the sentence is generously, which describes how the people were donating.
The answer is
“A. The injustice of discrimination.”
The reason for this is that the dog is at old age, stinky and is about to die. And in the book Carlson believes his useless for that reason, and the dog was discriminated for it. The author expressed how society treats (or discriminate) people of old age, person with disabilities and minorities.
Answer: They should not get involved in the Frank's family issues.
Explanation: If you read, you will find out that they feel like the Frank's have their issues just like other families do so for instance if someone was in their family issues they would get agitated and so stressed out that they understand that the Frank's need time to resolve their family buisness.
Answer: Solar energy is a convenient resource