The San Francisco Bay tides vary between 1 foot and 7 feet. The tide is at its lowest point when time (t) is 0 and completes a full cycle in 8 hours. What is the amplitude, period, and midline of a function that would model this periodic phenomenon? A. Amplitude = 6 feet; period = 8 hours; midline: y = 4  B. Amplitude = 6 feet; period = 4 hours; midline: y = 3  C. Amplitude = 3 feet; period = 8 hours; midline: y = 4  D. Amplitude = 3 feet; period = 4 hours; midline: y = 3

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