a. Check that the second version of compute-grade computes a grade using the strategy specified in the narrative. (That is, that it drops the lowest grade and doubles the highest grade.) You might, for example, use grades of 0, 50, 50, 50, 50, and 80. b. Write a new version of compute-grade that drops both the lowest and highest grade. c. Does this new version correspond to the documentation given in the reading? Why or why not? d. Suppose someone wrote a new version of compute-grade that returns the average of the homework assignments, with an additional one point of extra credit for each assignment over 80. Would this version correspond to the documentation? Why or why not?