If you chose whole transactions in the Journal Analyzer, the Whole Transaction(s) option is selected automatically in the Recover dialog.

If you selected individual row changes that make up only part of a transaction (in the lower portion of the dialog), the Individual Rows option is selected. In this case, you are prompted for confirmation as to whether you want to recover only parts of transactions, and lose transaction integrity. Although the recovery of individual rows is not recommended, it can be useful, for example, if a table has Ingres rules associated with it.