Question

The tides around Cherokee Bay range between a low of one foot to a high of five feet. The tide is at its lowest point when time, t, is 0 and completes a full cycle over a 24 hour period. What is the amplitude, period, and midline of a function that would model this periodic phenomenon?

amplitude = 4 feet; period = 24 hours; midline: y = 3

amplitude = 2 feet; period = 12 hours; midline: y = 2

amplitude = 2 feet; period = 24 hours; midline: y = 3

amplitude = 4 feet; period = 24 hours; midline: y = 2
I thought it was B.