Look at the time line above. How many years after Egypt was united did the Mid- dle Kingdom begin?

1000 years

Explanation:

The timeline provided shows the major vents in the history of Ancient Egypt. We can see that Upper and Lower Egypt have unified in 3100 B.C. The ruler who unified the lower and upper Egypt was Menes, who also started the First Dynasty of Egypt.

By the timeline, Middle Kingdom started in 2100 B.C. This period is started with the reunification of Egypt after the Old Kingdom and the age during which Egypt wasn’t as powerful. Mentuhotep II is the one who reunited Egypt and the first pharaoh of the Middle Kingdom.

We can therefore conclude that the Middle Kingdom started 1000 years after the first unification of Egypt.

the right answer is a

d. i assume the underlined word is "role." reformat if it isn't.

explanation:

role is closest to part because when replacing words, "playing a vital decision," "playing a vital activity," and "playing a vital dollar" don't make logical sense. the only meaningful choice is "playing a vital part."

this fits one of merriam-webster's definitions of role: "a function or part performed especially in a particular operation or process."