What Was the Result of the Battle of Britain in 1940

What was the result of the Battle of Britain in 1940?

A) Winston Churchill's approval ratings as prime minister plummeted as Great Britain grew convinced that it would lose the war.
B) The British gave up control of a number of their ports to the Germans, as the Germans had launched a primarily naval attack.
C) The British managed to avoid major civilian casualties and experienced little damage to their major cities, thereby boosting the morale of the Allied forces.
D) Although German air strikes killed many British civilians, the Royal Air Force used new radar technology to win the battle and postpone German invasion plans.
E) Thanks to the launching of their Luftwaffe air force, the German military won its first victory during the war after a series of major losses.