Which of the following best explains the significance of the “diaries, letters, and photographs” in the following passage (paragraph 9)?

Stunned by the growing hostility, the Nisei tried to appear as un-Japanese as possible. Slowly, sadly, all along the west coast of America, they destroyed what they possessed of their Asian heritage. Japanese books and magazines were burned because of a rumor that FBI agents had found such materials in the homes of Issei arrested on suspicion of sabotage. Priceless diaries, letters, and photographs were burned; porcelain vases, tea sets, and silk tablecloths were buried or dumped on the street.
Answer choices for the above question

A. They were items that could have identified Nisei by their Japanese heritage.

B. They were gifts Japanese Americans had given to the United States as a peace offering.

C. They were both items that were destroyed in the attack on Pearl Harbor.

D. They were items that the Nisei may have sent to Japan in order to support the other side in the war.