Read the following context and choose the best option to answer the question.
Context: This differential only has a little over 150 miles on it . I bought this unit used from a fellow with a Mustang who had it in his car but ended up pulling it for an E - locker for manual lock control . This diff is in great shape . Auburn makes a very solid LSD that will take a beating and not wear out for a long time .
Question: What is the narrator inspecting ?
Options: 
- They are looking at horses .
 - They are looking at automobiles .
 - They are looking at mustang ponies .
 - They are looking at animals .


They are looking at automobiles .