Question

Which of the following is a web application framework?

1. Diamond on Roads
2. Emerald on Waterways
3. Sapphire on Tramlines
4. Ruby on Rails

Answer 1

number 4. Ruby on rails

Answer 2

numeber4: Ruby on rails and i will also you some information about it see this :
Ruby on Rails, or Rails, is a server-side web application framework written in Ruby under the MIT License. Rails is a model–view– controller (MVC) framework, providing default  ...