500
Sally Ann was over 80 years old. She lived in a small house with a very small fenced-in yard. She had just lost her 16-year-old dog and decided to get another dog right away. Sally Ann went to the animal shelter, and after looking at all the dogs, she narrowed her choice down to two. The first was a large, black, one-year-old retriever. He had a lot of energy and was used to running on acres of land. The second dog was a small, three-year-old mix. The people who had owned him said he stayed home alone all day and knew how to use a doggy door to go out to the yard.
What dog did she choose?
The small 3 year old mix.