An Archeologist Finds a Huge Monolith in the Desert

Multiple Choice

An archeologist finds a huge monolith in the desert. In order to estimate the weight of this object; he estimates the dimensions of the monolith and removes some chips from the rock with his hammer, collecting the following data:
Dimensions of the monolith = 1.5 m * 5.2 m * 13 m
Mass of rock chips = 41.73 g
Volume of rock chips = 15.2 cm³
Determine the mass of the monolith in pounds, assuming it is of uniform composition. (1 lb = 453.6 g)

A) 5.9 * 10⁵ lb
B) 6.1 * 10⁵ lb
C) 6.3 * 10⁵ lb
D) 6.5 * 10⁵ lb
E) None of the above