Option B: I., II., and III.
Events in Los Angeles in 1940s
The United States enters World War II after the attack on Pearl Harbor on December 7, 1941. They faced the Empire of Japan in the Pacific War. Germany, Italy, and Japan suffer defeats at Stalingrad, El Alamein, and Midway in 1942 and 1943.
Thus, from the map we can understand events that happened were:
I. The white population increased.
II. The Hispanic and black populations increased.
III. The total population increased.
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