The diagram shows a force-extension graph for a rubber band. Consider the following statements.
I. It will be easier to compress this rubber than expand it.
II. Rubber does not return to its original length after it is stretched.
III. The rubber band will get heated, if it is stretched and released.
Which of the following statement{s) is/are correct regarding the graph? 

• A

  Only III

• B

  I and III

• C

  II and III

• D

  Only I