Question: The following in an example of which of Porter's Five Forces: Thomas Cook Travel agency recently went out of business after over 100 years in business. This was Europe's biggest travel agency. At the time of it's closing, it had its own airlines. One small hotel in Spain said that 80% of their business came from Thomas Cook, and that when the travel agency went bankrupt, the hotel had to close because of unpaid bills for past stays. (Hint: what power did Thomas Cook have over the hotel?). Group of answer choices Buyer power Supplier power Substitutes Competitive Rivalry New entrants