Answer:
Student A is more technically correct
Explanation:
According to student A ; the tide is caused by the difference in the height of the sea level, while
According to Student B the changing tides are caused by the earth rotating in and out of the tidal bulges.
while the General cause of Tides is defined as
The daily rise and fall of tide is caused by the gravitational pull of the sun and moon, and the various heights of the sea at any time of the day represents the rise or fall of tides
hence student A is technically correct.