Earlier in This Chapter We Discussed Some Ancient Buildings That

Earlier in this chapter we discussed some ancient buildings that were constructed so that they were aligned to the rising of the Sun at vernal equinox or some other important astronomical date. How does the precession of the equinoxes affect these alignments in a building, say, 2000 years old?

A) The alignments of such a building should still be perfect.
B) The alignments will vary slightly, but after a mere 2000 years the discrepancy in alignment will be almost too small to measure.
C) The alignments will vary significantly after 2000 years, but only for buildings within 23.5° of the equator.
D) The alignments will vary significantly after 2000 years for buildings anywhere on Earth.