d$.$ A research team estimates that conditions would allow for placing one stone every $2\mathrm{.}5$ minutes and that the project could have been completed by$10,000$ laborers. If the pyramid workers labored $12$ hours per$$ day, $365$ days per$$ year, how long would it take to build the$$ pyramid? How does this compare to historical$$ records? Why did the research team suggest the pyramid could have been completed by$10,000$ laborers rather than$100,000$ that the records$$ suggested?