Question $1($Mandatory$)(1$ point$)$ Add $1$ item? Singly linked list with head $($next ref only$)$: OC A $)$ Singly linked list with head and tail $($next ref only$)$: OC Doubly linked list $-$ head and tail $($next and prev references$)$: Ol Question $2($Mandatory$)(1$ point$)$ Add $1$ item to unsorted structure? Singly linked list with head $($next ref only$)$: OC Singly linked list with head and tail $($next ref only$)$: OC Doubly linked list $-$ head and tail $($next and prev references$)$: Ol Question $3($Mandatory$)(1$ point$)$ Remove $1$ item at beginning$/$head$?$ Singly linked list with head $($next ref only$)$: OC Singly linked list with head and tail $($next ref only$)$: ON Doubly linked list $-$ head and tail $($next and prev references$)$: $1$ Question $4($Mandatory$)(1$ point$)$ Remove $1$ item at end$/$tail$?$ Singly linked list with head $($next ref only$)$: $01|$ d $($next ref only$)$: OC A $)$ Singly linked list with head and tail $($next ref only$)$: OC A $)$ Doubly linked list $-$ head and tail $($next and prev references$)$: $01$Question $5($Mandatory$)(1$ point$)$ Remove specific item in middle? Singly linked list with head $($next ref only$)$: Ol Singly linked list with head and tail $($next ref only$)$: $01$ Doubly linked list $-$ head and tail $($next and prev references$)$: Ol Question $6($Mandatory$)(1$ point$)$ Search $($best case$)?$ Singly linked list with head $($next ref only$)$: ON Singly linked list with head and tail $($next ref only$)$: ON Doubly linked list $-$ head and tail $($next and prev references$)$: $01$