Be brief.
Proofread your message.
Seek other ways to relay your message.
Don't know the fourth one but hopefully that eliminates some of the answers.
"Martha" is a proper noun and "cat" is a common noun.
For two years Thoreau lived by the shore of Walden Pond by <span>C. working the land by himself.
It was a kind of experiments for him, a simple life at Walden Pond. He used this experience to write about and describe its philosophy of life, politics, and nature. This inspired his work "Walden" </span>
The answer might be False dichotomy
