Read the following article and answer the question by choosing from the options.

This evening I am going through boxes of old letters my Mom saved . I mailed the boxes to myself when I was cleaning out her house about a year and a half ago . There was so much shredding I had to do and she had saved everything .

What may have been the reason the narrator mailed boxes of old letters to herself from her mom 's house ?
Options:
I. She wanted to snoop through her mom 's attic when she was n't home .;
II. Her mother had passed away so she was putting the house up for sale .;
III. None of the above choices .;
IV. She was cleaning her her mom 's house for her .;...A:
II.