Hitler justified his invasion of northwestern czechoslovakia in the late 1930s by claiming
a. the soviets had invaded germany
b. the czechoslovakians had invaded germany
c. germans lived there
d. it was austrian territory

In 1939 the German Wermacht moved into the northwestern parts parts of Czechoslovakia, under terms outlined by the Munich agreement. german leader Adolf Hitler justified this invasion by claiming that the ethnic German population lived in those regions ( the German name: Sudenland ). C ) Germans lived there.

Brand c i think that should be it

I'm pretty sure it's c. extremely gradual but not 100% sure though.