I am writing this as a paragraph
Fox talbot - <span>Photographs
isaac singer - </span>Sewing machine
<span>Etienne Lenoir - <span>Gasoline engine
</span></span><span>Alfred Nobel - <span>Dynamite
</span></span><span>Wilhelm Roentgen - <span>X-rays</span></span>
Answer:
I would say option 2 because people could have different opinions on weather it was effective or not, which would allow you to make it into an argumentative essay.
