Which of these is a British medal instituted in 1918 awarded to officers and warrant officers of the Royal Air Force?

Question

ADSC

BDFM

CDSO

DDFC

Select from the options above.

Correct Option: 4  

Explanation:
The Distinguished Flying Cross (DFC) was instituted in 1918 awarded to officers and warrant officers of the Royal Air Force. The Distinguished Flying Medal (DFM) is awarded to NCOs and men. The Distinguished Service Order (DSO) was instituted in 1886 and awarded to officers of the army, navy and air force. The Distinguished Service Medal (DSM) instituted 1907 is awarded to lower ranks of the navy.