D) <em><u>a beneficial mutation that increased survival of certain plants that reproduced and passed the mutated gene to offspring.
Hope this helped! xD</u></em>
The goods that were spread included paper, food, plants, gold and silver, bamboo, spices, glass, jade, and silk. The ideas that were spread included what people believed in. People from different places were introduced to the the cultures of other traders that came from different places.
<span>B: it contains many small mountain ranges with basins</span>
