Early mariners from the Vikings to medieval explorers were usually able to find their way if they employed early man-made navigation tools such as rudimentary magnetic compasses,
geomagnetic lodestones, astrolabes, first used in classical antiquity, or the sun and stars.
A. geomagnetic lodestones, astrolabes, first used in classical antiquity, or the
sun and stars.
-- Sun and stars are not man-made navigation tools.B. geomagnetic lodestones, astrolabes, which were first used in classical antiquity, or the
sun and stars.
-- Sun and stars are not man-made navigation tools.C. geomagnetic lodestones, and astrolabes, first used in classical antiquity, or
if they could read the sun and stars.
-- Looks good. Keep.D. geomagnetic lodestones, or astrolabes, first used in classical antiquity, or
the reading of the sun and stars.
-- Parallelism not maintained. Should be 'if they could read the sun and stars.'E. geomagnetic lodestones, astrolabes, which were first used in classical antiquity, and
the sun and stars.
-- Sun and stars are not man-made navigation tools.Answer is C.