Maybe because she is Chinese and wanted to have her book be related to her in a way.
i could be wrong but who knows.
B because it explains Army Captain Kline's experience being home after 6 years of being in the Army.
Answer:
It's either:
Statement 3: "Stamps have been used for hundreds of years throughout the world."
AND/OR
Statement 4: "Collecting stamps is like collecting little pieces of artwork, but is much less expensive and takes much less room."
Explanation:
Statement 3 states how stamps have been used for hundreds of years, which explains that it would be a worthwhile hobby to also keep history alive, while in Statement 4, it states that collecting stamps is cheaper and takes up less room than other hobbies. Hope this helps! ^^
I am not sure with the answer "Unless the adverb phrase or clause comes before the main clause which I highly doubt than you do not need any punctuation."
have a great day!!!