Answer:
A. The Mongol Empire conquers Russia.
Step-by-step explanation:
A timeline can be defined as a graphical representation of a series of important events in order in which they have occurred i.e in a chronological or sequential order. Thus, a timeline shows the order of events from top to bottom or left to right, starting with the earliest and moving forward to the most recent (latest).
Generally, a timeline is typically considered to be a cause and effect graphic organizer due to the fact that it illustrates events in a chronological or sequential order, their place in history, and how these events are interrelated or led to another.
Therefore, the timeline would be in this order;
I. Slavic people create early civilizations in Russia.
II. Kievan Rus takes control over Russian lands.
III. The Mongol Empire conquers Russia.
IV. Ivan the Terrible becomes the ruler
of all of Russia.