Which of the following material can be used on a website? a. a photograph taken in 1915 b. royalty-free clip art c. a few lines from a play in a review d. all of these i think its b but i want to double check

I would say its B. Because its the only one that has no copyright or trademarks

I’d say platform as a service (paas) or application platform as a service (apaas) or platform base service is a category of cloud computing services that provides a platform allowing customers to develop, run, and manage applications without the complexity of building and maintaining the infrastructure typically associated with developing and launching an app.