You are welcome to answer questions posted in the Ask a Teacher forum as long as your suggestions, help, and advice reflect a good understanding of the English language. If you are not a teacher, you will need to state that clearly at the top of your post. Please note, all posts are moderated by our in-house language experts, so make sure your suggestions, help, and advice house the kind of information an international language teacher would offer. If not, and your posts do not contribute to the topic in a positive way, they will be subject to deletion.
Additionally, "persons" is mostly found in formal or technical contexts, where there is a particular reason for regarding the "persons" as a collection of individuals, rather than a group. For example (from Google):
1. National listings of unidentified deceased persons.
2. The Missing Persons Helpline.
3. ...persons of suspicious appearance...
people and persons 
Linear Mode
