Economic, political and social instability combined with barbarian invasions led to the fall of which empire?

a)
the roman empire

b)
the british empire

c)
the ottoman empire

d)
the byzantine empire

The period of catholic revival beginning with the council of trent and ending at the close of the thirty years' war was known as a) the counter reformation. b) the lutheran revolution. c) the glorious revolution. d) the protestant reformation.