Which one of the following classes are part of the System.Collections.Generic namespace?

132.

Stack

Tree

SortedDictionary

SortedArray

1 and 2 only

2 and 4 only

1 and 3 only

All of the above

None of the above

View Description

Stack-Represents a variable size last-in-first-out (LIFO) collection of instances of the same arbitrary type.
SortedDictionary-Represents a collection of key/value pairs that are sorted on the key.