<span>c. phanerozoic eon Im like 25% sure</span>
This is called species richness
Answer:
D) Manifest Destiny
Explanation:
Manifest Destiny -
In the 19th century , it was a belief that , the settlers were destined to expand in the North American region .
The three themes were as follows -
1. Duty to accomplish an irresistible destiny .
2. The special virtues of the people of America and American institutions .
3. To remake and redeem the west in an image of the agrarian American .
Hence , the correct answer is D) Manifest Destiny .
