I would say E.. Empty is more of describing not renaming, and appeared is a linking verb :)
If you sit down, and stare down at your phone, or lay your head on a table for too long your neck gets strained. If you are hunched for too long your back starts to strain and you will feel pain on your back.
So it is asking what which ones has to be capitalized in an outline (I,A,or B) ???<span />
Answer:
B: Experts today estimate that 20,000- 30,000 laborers worked on the pyramid at any one time.
Explanation:
The main idea about the task of builting the pyramid, which required a huge workforce, is supported by the detail described in option B that says that the experts estimate the number of workers involved in this colossal project: <em>between 20,000 and 30,000 laborers is to be considered a huge workforce.</em>
Wrokforce: all the people who work for a company or organization.