Respuesta :
the best answer is C the allies took an important step toward reaching Berlin
The correct answer is C.
The D-Day invasion, also denominated the Normandy Landings, took place in June 1944 and it was the beginning of the liberation of German-occupied France during WWII.
Most importantly, it set the playing field and the conditions for the subsequent victory of the Allied countries against the nazis in the Western Front. After the sucess of the landings, the Allies kept on gaining territories and advancing towards Berlin.