I had to get the Bible to see this.
Answer:
D it manufactured shell casings and tank parts.
Explanation:
"J.B. Beaird Company manufactured shell casings, anchors, and tank parts."
The main way in which inventions such as the telescope and microscope changed the way people saw world is that the former invention allowed them to see into space, which gave a much better representation of Earth's place in the Universe--while the latter invention allowed people to see microorganisms and things like cells, which allowed them to better understand life on earth.
AN 1848 POLITICAL PAMPHLET BY GERMAN PHILOSOPHERS KARL MARX AND FRIEDERICH ENGELS.