What group of women were referred to as night witches in German propaganda campaigns?

A- American factory workers who accepted war production jobs after large numbers of men join the US military
B- Britain’s Queen Elizabeth and Queen Wilhelmina of the Netherlands, who encourage their subjects to resist Nazism
C- photographers, such as Margaret Bourke-White who captured images of Nazi atrocities in concentration camps
D- Soviet pilot who conducted bombing grades in Nazi occupied territories

D- Soviet pilot who conducted bombing raids in Nazi-occupied territories