What is a benefit of responding to a counterargument with a concession? Answering a counterargument with a concession helps the writer appeal to readers’ emotions.
Using this tactic highlights the writer’s expertise and the opposition’s shallow understanding.
Responding with a concession allows the writer to quickly disprove the counterargument.
By offering a concession, the author appears reasonable, open-minded, and thoughtful.

The slideshow presentation should be created based on your opinion of the historical, political, social and cultural circumstances of Nigeria in the 1890s and for that reason, I cannot do this presentation for you, but I will show you how to do it.

As shown in the question, you will be asked to create a fifteen slide presentation based on the research you have done on the historical, political, social and cultural circumstances of Nigeria. In that case, you should re-read all your research and establish a point of view, an opinion on how these factors influence Nigeria. That opinion is your Thesis Statement.

Next, you should look for research sources that show information that proves that your opinion is true, you need at least three research sources. These sources must be reliable, that is, they must be written by subject matter experts.

After that, you can assemble the slides as follows:

Use the first three slides to show an introduction to your presentation, where you present the elements that will be discussed during the presentation.Use the rest of the slides to show your thesis statement and all the evidence to show that it is true and relevant.Leave the last slide to present a conclusion, where you will show your final reasoning about Nigeria and reinforce your thesis statement.

It is important that you use very little text in your presentation and fill your slides with visuals such as photos, videos, graphs and tables.

At the link below you can find more information on how to create a slideshow presentation: