If you do not need efficient random access but need to efficiently move sequentially through the list,then use the _____________ class.

A) Vector< T >
B) LinkedList< T >
C) HashSet< T >
D) TreeSet< T >

LinkedList< T > is the best choice because it allows for efficient sequential traversal by using pointers to the next node in the list. It does not provide efficient random access, but if sequential access is the primary concern, then LinkedList is the best option. The other options provide varying levels of performance for random access, but may not necessarily be optimized for sequential access.