Please help me urgently

c. Abigail brought 4 books during her holiday at Melaka. She forgot to add cargo fee when she buys her flight ticket. With only 4kg space available in her backpack, help Abigail to select which books to bring back. After your help, she will use postal service to send the rest of the books to her hometown via air mail. The weight and value of each books are as follows: Book 2 Book 3 Book 4 Book 1 2 RM20 4 Weight Value 1 3 RM10 RM40 RM40 (10 Marks) d. Consider the problem of minimizing the total number of multiplications made in computing the product of 5 matrices with size 4 x 10, 10 x 3, 3 x 12, 12 x 20, 20 x 7. Complete the tabulation table for table cost and table k value. Provide the optimal parenthesis arrangement of the matrices for the minimum cost. (15 Marks)