A graph of the depth of water at a pier in the ocean is given, along with five labeled points A, B, C, D,
and E in the zy-plane. For the time periods near these data points, a periodic relationship between
depth of water, in feet, and time, in hours, can be modeled using one cycle of the periodic relationship.
Based on the graph, which of the following is true?
The time interval between points A and B gives the period.
B
The time interval between points A and C gives the period.
The time interval between points A and D gives the period.
The time interval between points A and E gives the period.