Answer:
The correct answer is letter "B": Amazon has the higher revenue growth, but eBay has the higher margin.
Step-by-step explanation:
By August 2018, Amazon reported a five-year gross margin average of 20% while eBay reported a five-year gross margin average of 74%. However, Amazon has outperformed eBay in terms of revenue growth since they reported revenue growth of 25,97% between 2015 and 2018 while eBay only 2,86% during the same period.