7. What causes high and low tides? O A. The series of regular lunar eclipses
O B. The frictional coefficient of water
O C. The gravitational pull of the sun and the moon
O D. The rotation of the earth on its axis

the correct answer is option D

Answer is C

Explanation:

The moon and sun have their own gravitational pulls that indeed cause high and low tides. If you can see the moon over you at a beach for say, then the tides would be high, if there is no moon, then the tides are low

i do not know and i have a 100 in this class

i think the answer is

mass