Read the following sentence, which contains a grammatical error. There is many reasons to visit Pennsylvania, not least of which are the famous historical sites like Gettysburg and Independence National Historical Park. Which revision of the sentence best fixes the error?
1) There is many reasons to vest Pennsylvania, not least of which is the famous historical sites like Gemsburg and independence National Historical Park
2) There were many reasons to vist Pennsywania not least of which are the famous Historical sitesine Gemysburg and independence National Historical Park
3) There are many reasons to visit Pennsylvania, not least of which are the famous historical sites like Gettysburg and independence National Historical Park
4) There is many reasons to visit Pennsylvania, not least of which were the famous historical sites like Gettysburg and independence National Historical Park