What Was the Result of the Battle of Britain in 1940

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

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