dll $=$ doubly$\_$linked$\_$list$()$

head tail count

And then we run this line

append$\_$item$("$cat$")$

with this result. Note that the computer is storing the new node in a location of its choosing $-$ we are just noting that the three fields of the new node object $($prev$,$

data, and next$)$ are stored starting at location $6.$

Which of the following is the result after running the code and why?

append$\_$item$("$dog$")$

Note, again, we don't have any control over where, physically, this new object gets stored. All we care about is that the various links and pointers inside the linked

list are correct.

A

B