I think its decades

Jill enjoys reading about American history, especially the last 40 years, or four _____________, of the nineteenth century.

A.
centuries

B.
millennia

C.
decades

D.
eras

2 answers

correct.
Can you check this one?

Tyler wrote a paper describing life in England in the eighteenth _________, from ______ to ______.


I think its A.






A.
century; 1801, 1900


B.
decade; 1701, 1800

C.
century; 1700, 1799


D.
century; 1701, 1800