The delivery technique Marcus is using while delivering a speech verbatim from a teleprompter is manuscript delivery.
So the text he is reading is called a manuscript, and he is delivering it in front of cameras or people. Verbatim means word for word - so he is reading everything that is written in the text. This is a common method of reading text during news on TV, for example.
The purpose of technical writing is to provide sometimes complex information. This is the type of writing that will Assist a person with understanding more about a particular item ( a computer or a new drug) it Explains how an object works or how to complete a project, and its also used in technical jobs such as computer hardware, software, and engineering
hope that helps :)
Compare the information with other websites, and see if the information is the same/similar.
Hope it helped! :)
B seems to be the best answer.