Out of the choices given, one type of resource are newspaper accounts written at the time an event occurred is primary source documents. The type of documents is also known as a diary, manuscript, original source, or an autobiography.
So it is Primary Source Document.
Because they were used to do hard work. They were small so it allowed them to fit into small spaces and still be able to move. They were able to do the work adults wasn't able to do. Hope this helps!
I think the best answer for this is union organizer C
To show how it looks or works
