of change. The total number of words, M(t), that a person can memorize in t minutes is a) Find the average rate of change of M as t changes from 0 to 8; from 8 to 16; shown in the graph below, Complete parts a) and b) to the right. from 16 to 24; from 24 to 32; from 32 to 36. The average rate of change of M as t changes from 0 to 8 is words/min. (Simplify your answer.) 40 (32,36) (24 36) The average rate of change of M as t changes from 8 to 16 is words/min 30-(16,30) (36,36) (Simplify your answer.) 20 (8,20) The average rate of change of M as t changes from 16 to 24 is words/min. (Simplify your answer.) 10 The average rate of change of M as t changes from 24 to 32 is words/min (Simplify your answer.) -co 16 24 32 3640 The average rate of change of M as t changes from 32 to 36 is words/min (Simplify your answer.) Note: Graph not drawn to scale b) Explain the behavior of the average rates of change after 24 min. O A. The graph becomes horizontal and therefore has an undefined slope. OB. The graph becomes horizontal and therefore has a slope of zero. O C. The graph becomes vertical and therefore has an undefined slope O D. The graph becomes vertical and therefore has no slope