Everyday on Earth our oceans experience the rise and fall of tides. How many tides are there in total each and every day?
A:3 high tides and 3 low tides for a total of 6 tidal changes each day.
B: 1 high tide and 1 low tide for a total of 2 tidal changes each day.
C:2 high tides and 2 low tides for a total of 4 tidal changes each day.
D: 4 high tides and 4 low tides for a total of 8 tidal changes each day.