I think the answer might be D
Answer:
Marco polo worked as an administrator for 17 years.
Explanation:
Upon reaching China, Marco Polo entered the court of powerful Mongol ruler Kublai Khan, who dispatched him on trips to help administer the realm. Marco Polo remained abroad for 24 years
D. Radio waves.
X-rays and visible light are transverse waves.
Shockwaves can be either longitudinal or transverse, hence radio waves is the most accurate answer.
Matter makes up everything.
The species of an organism with more favorable traits will live longer to reproduce and evolve while with natural selection, the organisms will get picked out and eaten