Based on the graphs , what is the best way to prepare pineapple for use in gelatin desserts ? 
A. Heat the pineapple to 55 deg * C or higher . 
B. Chill the pineapple to 30or lower . 
C. Change the pH of the pineapple to 4.5. 
D. Change the pH of the pineapple to 7.5 .
APEX
                                             
                                          
                                          
                                       