Answer:
Correct choice is <u>option D. </u>
Explanation:
A historian's work is similar to that of a police officer's. A historian researches a lot about whatever their topic is. They both go above and beyond to confirm his or his research or findings about a past history event. They both look for firsthand or even secondhand experiences on the subject. They both look for actual witnesses to support their claims on their findings.
It started in the 1880's.
i don't know yet i will tell you later
Mexico because Mexico gave 55 percent of its territory, including parts of present-day Arizona, California, New Mexico, Texas, Colorado, Nevada, and Utah, to the United States
