Which of the following types of auctions "shields the brand" of the seller? Select one: O a. Dutch auction b. penny auction c. Name Your Own Price auction d. English auction Which of the following is another name for a revenue model? Select one: a. financial statements b. business model c. financial model d. business strategy is the ability to ensure that e-commerce participants do not deny their online actions. Select one: a. Integrity O b. Authenticity c. Nonrepudiation d. Availability is a model of computing in computer processing, storage, software, and other services which are provided as a shared pool of virtualized resources over the Internet. Select one: O a. Mobile computing b. Client/server computing O C. Cloud computing d. P2P computing