Which statement correctly uses a description of time?

A. The invention of the internet began a new millennium.
B. The expansion of railroads marked the start of a new era.
C. The time from 1980 to 1989 was a century of economic growth.
D. The years 1900 to 1999 were a decade filled with many political changes.

Option D.

The years 1900 to 1999 were a decade filled with many political changes.

Explanation:

The years 1900 to 1999 were a decade filled with many political changes. Uses description of time very well. It talk about a dispensation or time that was filled with political changes. It reveal the happenings and transformation that happen to politics in that time. It shows the sequence of events that took place then.

gays

explanation:

the correct answer is:   the domino theory states that if one country in a region came under the influence of communism, then the surrounding countries would follow in a domino effect.