Hightop Tech stock currently sells in the market for $42.00/share. It just paid a dividend of $6.00/share. Investors expect that the dividend will decline at a constant rate of 4% per year in the future. That is, the expected growth rate g is -4%. What rate of return do investors require on this stock? a) 18.86% b) 10.29% c) 10.86% d) 17.71% e) 9.71%