Time management

Julia is a partly qualified accountant who works for a small public service organisation. She is a pleasant person and her immediate superior finds it easy to work with her
Some of Julia’s colleagues, however, are more difficult to deal with and her immediate superior finds it more difficult to allocate work to them. As such he places more and more work demands on Julia.
Julia is now finding it difficult to keep up with the demands made upon her. She finds it difficult to determine which work needs doing first. She has adopted an approach whereby she does the work in the order in which it is given to her. At the moment she is overwhelmed with complaints from both her internal customers and her immediate superior who are all demanding that she responds to their work requests.
Which TWO barriers to effective time management are shown in the behaviour of Julia?
A)Lack of assertiveness
B)Inability to delegate
C)Poor motivation
D)Lack of work priontisation
For me B and D Can you help me to undertand it fully this situation