If a point on the coast experiences a semi-diurnal tide, what does the daily tide record show?

A) Either one or two high tides each day, as long as they don’t change much
B) One high tide (half a tide) one day and one low tide the next
C) Two unequal high tides and two unequal low tides each day
D) Two nearly equal high tides and two nearly equal low tides each day
E) One high tide and one low tide per day