Which of these describe the German invasion of France in World War II?

A It was a slow, bogged down war, with trench to trench fighting and a deadly area called "no man's land" in between the enemy trenches. Little progress was made in four years of terrible fighting.

B The Germans invaded through the thick Ardennes Forest and surrounded the French and British forces. The French and British troops were quickly defeated and barely escaped to Britain. France was conquered in around a month.