You heat on the news that the S8P 500 was down 2.4% todoy relativo to the risk-free rate (the markers excess rotum was 2.4% ). You are thinking about your portlolio and your investments in Zynga and Proctor and Gamble. a. If Zynga's beta is 1.3 , what is your best guess as to Zynga's excess return foday? b. If Proctor and Gambie's beta is 0.6 , What is your best guess as to PSG's excess return today? a. If Zynga's beta is 1.3 , what is your best guess as to Zynga's excess return today? Zynar's excess retum today is K. (Round to one decimal place)