Respuesta :
Creating a prototype and troubleshooting are steps in the development of "B. a new experiment" since this is something that either hasn't been tried before or has been tried with lots of error, due to the fact that a prototype is required.
The answer is: D. A new technology.
Creating a prototype and troubleshooting are steps of the technological design process. In the production of new technology, scientists need to create a prototype to test out their design, troubleshoot and redesign as necessary. The creation of a prototype (or model) is one of the aspects of technological design process that is different from the regular scientific method.