Answer the following quegtions with true or false:

$21.$ helpPtr. next $=$ helpPtr.prev.prev;

Noxt of Madinah points to Mekkah

$($C$)$ Ixue b$)$ False

$22.$ helpPtr.next.prev $=$ helpPtr.next.next;

Erevious of Tabouk points to Dammam

duT rue b$)$ False

$23.$ helpPtr.prev $=$ helpPtr.prev.prev. next;

This makes no changes

$(1).$ True b$)$ Fa: se

$24.$ helpptr.prev.prev $=$ helpptr.next;

rue b$)$ FaLse