Answer:
The correct answer is familiar size.
Explanation:
Familiar size is a visual indicator used to judge the distance of an object. It is a monocular cue that means that even by using only one eye, it can provide information about depth perception. By understanding the size of an object, a person can distinguish the perception of depth and the distance from an object.
Actually, in the example, the heights of Yao Ming and his coach do not influence on Bryce's depth perception. That is why she sees them apparently at the same distance.
The significant climate change between the two periods was the end of the last ice age, around 12 000 years ago (so rather in the paleolithic. This allowed for wast areas of Europe to be accessible to humans again and helped the development of agriculture, as the warm climate supported agriculture more than the cold.
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