Its letter A, if I'm wrong, its letter C
1: B, making up a whole of many different parts.
2: A, Istanbul is more modern than rural Turker
3: C, Mashad, in a valley in northeastern Iran.
B it made all slaves us citizens
The correct answer is D. A photographer
Mathew B. Brady (May 18, 1822 – January 15, 1896) was one of the earliest photographers in American history, best known for his scenes of the Civil War.
Yes, it is true that early humans had to endure changes in climate and environment, since things like global warming and cooling, along with major events like the Little Ice Age, meant that the temperatures in the world were changing dramatically.