The following diagram shows the parent-child relationships among three processes. Linked lists can be avoided by implementing two additional pointers, younger sibling (ys) and older sibling (os), in each PCB. Complete the table by showing which field points to which process using the four different pointers. If an entry is unknown, enter - The following diagram shows the parent-child relationships among three processes. Linked lists can be avoided by implementing two additional pointers, younger sibling (ys) and older sibling (os), in each PCB. Complete the table by showing which field points to which process using the four different pointers. If an entry is unknown, enter