The PM team is working this week on reviewing docs . We ' ve assigned about 240 topics among us and spend time this week reviewing topics in our docs like " How do I do debugging " . We are uncovering some good bugs on the content and the help experience as we go along .
According to the above context, choose the best option to answer the following question.
Question: What may have caused you to review the topics ?
Options:
- We needed to learn how to do debugging .
 - Our training docs needed to be revised .
 - The PM team wanted to simplify the help experience .
 - Some things needed to be revised .


Some things needed to be revised .