19. (5 points) Circle TRUE or FALSE (Refer to the UMLs. Please answer the questions based upon the contents/codes we have discussed in class up to now.) TRUE / FALSE TRUE / FALSE The implementation (i.e., body) of ListArrayBased() is identical to that of removeAll The implementation (i.e., body) of isEmpty in ListArrayBased class is identical to that of isEmpty() in List ReferenceBased class. The implementation (i.e., body) of size() in ListArrayBased class is identical to that of size() in List ReferenceBased class. The implementation (i.e., body) of List Reference Based() is identical to that of removeAll() Both ListArrayBased and List Reference Based classes implement ListInterface. TRUE / FALSE TRUE / FALSE TRUE / FALSE If needed, refer to the following UML diagrams. NOTE: (1) Array index starts from 0, not from 1 in ListArrayBased. (2) Notice that a new method, getHead(), is defined in ListReferenceBased and you are asked to use it for some questions