The answer is A.
b and c are opinionated and Star signs aren’t scientifically proven.
Answer:
Lack of food, increase in predators, lack of space, too much competition within the population, lack of water
Explanation:
Before the rise of the Mongols in the 13th century, it is now
called central and western Inner Mongolia, particularly the Hetao region,
change back and forth in control between Chinese agriculturalists in the south
and nomadic Mongol of the north. is known through Chinese chronicles and
historians.
Descriptive and inferential
