The correct answer is A) climatic changes and human innovations.
People in the New Stone Age had a different relationship to plants and animals due primarily to climatic changes and human innovations.
During the New Stone Age, the weather conditions on Earth were warmer than in the Old Stone Age. This allowed people and animal to increase in number. People from the New Stone Age stopped being nomads and they considered to settle in one place and in doing so, the learned how to grow crops in what is considered the first steps of agriculture. That is why people in the New Stone Age had a different relationship to plants and animals due primarily to climatic changes and human innovations.