Which of the following example listed is a failure modela.Amazonb.Olac.Google Glassd.Uber

The failure model among the options provided is Google Glass.

Here's why:

a. Amazon - This is not a failure model. Amazon is one of the world's largest and most successful online retailers.

b. Ola - This is not a failure model. Ola is a successful ride-sharing company in India.

c. Google Glass - This is a failure model. Google Glass was a type of wearable technology with an optical head-mounted display. It was developed by Google with the mission of producing a mass-market ubiquitous computer. However, Google Glass received significant criticism and legislative action due to privacy and safety concerns. The product lacked a clear user base, suffered from poor battery life, and was priced too high for the average consumer. Google stopped producing the prototype in 2015.

d. Uber - This is not a failure model. Uber is a successful international ride-hailing company.