For the plots above regarding a regression of 100 metre Olympic sprint times on year, are all the assumptions met? Select the best answer. Select one: O a. No, the residuals are not evenly spread either side of the horizontal line for the range of x- values O b. No, the histogram of the residuals is not sufficiently symmetric O c. Yes O d. No, the relation does not look linear O e. None of the assumptions appear to be satisfied