Which events of 1943 helped make an Allied victory possible?

Choose all answers that are correct

(1). Allied code breakers secretly cracked the Nazi naval code and could then read key messages.

(2). The Battle of Guadalcanal proved to be a turning point in the war in the Pacific.

(3). The Red Army surrendered, allowing the Allies to march through Russia.

(4). Allied forces were able to invade both Germany and Japan.