Which events of 1943 helped make an Allied victory possible?

Choose all answers that are correct.

AThe Battle of Guadalcanal proved to be a turning point in the war in the Pacific.
BAllied forces were able to invade both Germany and Japan.
CThe Red Army surrendered, allowing the Allies to march through Russia.
DAllied code breakers secretly cracked the Nazi naval code and could then read key messages.

Verified Answer :

The best options from the list would be that "b. Allied forces were able to invade both Germany and Japan" and "d. Allied code breakers secretly cracked the Nazi naval code and could then read key messages," since this put the advantage in the "arms" of the Allies. 

Answer:

b and d

Explanation: