Question

During the Battle of Britain, what

advancement allowed the British to
hold off the German bombing of
London?
A. OSRD
B. RADAR
C. SONAR
D. USAF

Answer 1

B. Radar

Step-by-step explanation:

Their radar early warning, which was the most advanced and the most operationally adapted system in the world, gave Fighter Command adequate notice of where and when to direct their fighting forces to repel the German bombing raids.

I hope this helps. I am sorry if you get this wrong.