(1 point) This problem is based on one from your textbook. (Note: You will be limited to at most 5 attempts for this problem.) Here is the graph of the function f : How many critical points does f have? For each of the following questions, as your answer, list the labels of the relevant points. For instance, if a question asks you to identify the points at which the function has a local maximum, and the points at which the function has a local maximium are B,E, and H, then you should type BEH. If there are no points of the type asked for by a question, then type the word NONE. Which points are critical points? At which points does f have a local maximum? At which points does f have a local minium