Which statement is false?

a. Linked lists are collections of data items "lined up in a row"-- insertions and deletions can be made anywhere in a linked list.
b. Insertions and deletions are made only at one end of a stack, its top.
c. Insertions and deletions are made only at one end of a queue, its tail.
d. Binary trees facilitate high-speed searching and sorting of data.

C