Which of the following best explains the importance of “San Francisco, Los Angeles and Seattle” as noted in the following passage?

After Pearl Harbor the Nisei went to great lengths to demonstrate their patriotism. They flooded the streets of San Francisco, Los Angeles, and Seattle in mass demonstrations of loyalty. They waved American flags and recited the pledge of the Japanese American Citizens League. They bought war bonds, donated blood, and ran ads in newspapers denouncing Japan and pledging loyalty to America. In San Francisco, Nisei started a fund-raising campaign to buy bombs for attacking Tokyo. In Los Angeles they formed committees to make sure that no person of Japanese ancestry tried to aid Japan. The day after Pearl Harbor the Japanese American Citizens League sent the following telegram to President Roosevelt:
Answer choices for the above question

A. Those were cities with large populations of Japanese Americans.

B. Nisei spies were found in all three of those cities.

C. Those were cities known for their intolerance of immigrants.

D. Those were all cities that were attacked during World War II.