2. Select the correct answer. A homeowners' association monitored the number of households in a neighborhood using their sprinkler systems during certain hours. This graph shows the Information recorded for two days. f(x) Water Sprinkler Usage 250 225 200 Number of Households ou 175 150 125 100 75 50 25 O 3:00 am 7:00 a. m. 11:00 a. m. 3:00 p. m 7:00 p. m. 11:00 p. m. 3:00 a. m. wie 00:2 we 00:11 3:00 p. m. 7:00 p. m. 11:00 p. m. 3:00 a. m. Time of Day cos(x). The function describing this graph is a transformation of the parent cosine function, y = Which value best describes the period of the transformed function?