In order to check the prospects who engaged with you throughout the campaign, following steps will help you further:
go to your campaign's contact (article)
click on status > replied
apply all the replied filters
Following you can find the list of all replied filters:
Replied Neutral: Postponement
Replied Neutral: Referral
Replied Negative: Wrong Identity
Replied Negative: Not Interested
Replied Via Other Contact
Targeted Via Other Channel
Replied Positive: Next Stage
Replied: Referral
Replied
click apply filters as shown in the image below:
all your contacts who engaged via the campaign will appear :)
If you want to check more statuses and their exact definition, you can check out this article: