D.. PSAT REASONS TO TAKE THE PSAT. The PSAT is a two-hour test given once a year in October. Many students take the PSAT, not only as preparation for the SAT taken in senior year and widely used as a major criterion for college admissions, but also to qualify for the National Merit Scholarship Competition.
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.
True. this is because the narrator is trying to be as realistic as possible.
In my opinion, it is l and lll
