A marine scientist collected data regarding the height of the tide at clearwater beach over the course of a week. The data is shown below. She concludes the tide will always be lowest at night. Is this correct? Day Low Tide High Tide

18-Jan 1:10 AM 6:39 PM
19-Jan 2:11 AM 7:40 PM
20-Jan 3:10 AM 8:37 PM
21-Jan 4:01 AM 9:28 PM
22-Jan 4:44 AM 10:14 PM
23-Jan 5:24 AM 10:55 PM
25-Jan 6:01 AM 11:33 PM

a. Yes: low tide is consistent and will always be lowest after 6pm.
b. Yes; the tide is always lowest between 12 am and 6 am and will continue to follow the pattern.
c. No; low tide advances by 40 to 60 minutes each day.
d. No; the height of the tide is unpredictable from day to day.