The correct answer is letter B
Laetoli's footprints were left 3.5 million years ago where today is Tanzania, East Africa. It is the oldest evidence of a bipedal hominid, that is, walking upright under two legs. They were Australopithecus afarensis, with a monkey-like face, low forehead, flattened nose and large jaws. The height of an adult was around 1.40 meters. Hence your 18 cm foot looks so small. The perfect preservation happened thanks to the eruption of a volcano in the neighborhood. A rain turned the ashes into a kind of layer of fresh cement. Then the two Australopithecus arrived, leaving their feet perfectly designed for about 70 times.
Like many dictators Stalin was adept at utilizing every tool in his arsenal and the media was no exception. He distributed his propaganda materials through both the radio and the newspapers. He expertly manipulated the people by saying the exact things they wanted to hear. His messages also gave praise to communism and the regime while he portrayed the capitalism as evil.
The condition of westward expansion created a market for the jeans Levi Strauss invented in the 1850's are the harsh weather and the physical work environment.
Westward expansion was becoming popular in the United States during the mid-1850's. Levi Strauss was a German immigrant who moved to American during the 1840s.
i think you mean "who" not "what", so your answer is Vladimir.