Jeff gave a presentation that attempted to convince stockholders to purchase the new software he had developed. What type of presentation did Jeff give?

Answer: Progress report presentation

Explanation: Progress report presentation is the presentation that consist the progress report of an individual's work. It describes about the project/work that a person has started to complete the project. These reports are made for the clients, students, colleagues etc.

Progress report in this case is made for the client to make them understand about the Jeff's work, his contribution, changes he invoked in it, achievements, completion of the project, benefits of it etc. This presentation will encourage the client to buy the software made by Jeff.