Answer:
3
Step-by-step explanation:
You sort of have to know what era you are talking about.
For example, if you were talking about WWI and WWII then D would be the answer.
If you were talking about the 1880s then pictures would be a novelty and followed. So the first one would be the answer.
So you are justified in picking 3 of the 4 items (leaving out 2)
I would pick 3 myself.