Problem
1. What are the characteristics of the ADT queue?
2. Which of the following is true of stacks and queues?
a. A stack is a last-in, first-out structure, and a queue is a first-in, first-out structure.
b. A stack is a first-in, first-out structure, and both structures are random access structures.
c. A stack is a last-in, first-out structure, and a queue is a random access structure.
d. A queue is a last-in, first-out structure, and a stack is a first-in, first-out structure.
e. A queue is a first-in, first-out structure, and a stack is a random access structure.