Based on source 4, which statement best explains the relationship between the physical environment and the achievements of early humans? 0 Select one: 7 O A. Early humans used the environment to establish systems of trade through bartering. B. Early humans viewed the environment as fragile and used care when creating tools. O C. Early humans viewed the environment as sacred and used it to please their gods. O D. Early humans used the environment to create tools to help them acquire food.​