The following table lists the components needed to assemble an end item, lead times, and quantities on hand. Item End B C D E F G H LT (week) 3 1 1 1 1 3 1 3 Amount on hand 0 9 10 24 10 33 4 0 Click here for the Excel Data File A tree diagram with 'End Item' as the root node, branching out into three nodes labeled 'B(2)', 'C', and 'D(3)'. The 'B(2)' node further branches into 'E(2)' and 'F(3)'. The 'C' node branches into 'G(2)' and 'E(2)'. The 'D(3)' node branches into 'H(4)' and 'E(2)'. If 17 units of the end item are to be assembled, how many additional units of E are needed? (Hint: You don't need to develop an MRP plan to determine this.)