Near-Ultraviolet, Violet, blue, green, and yellow
Answer: Pretty sure its B
Explanation: When lithospheric plates move apart, it is called a divergent boundary. Mid-Ocean Ridges are found at divergent boundaries.
The other options don't make any sense as the answer.
Answer: Both smallpox and COV 19 are novel diseases in their respective timelines. Both spread by inhaling infected droplets, albeit COV 19 is transmitted through aerosols and surfaces touched by infected people as well.
Explanation: