You would need to alter the data in the table CategoryQuestionsTbl. You can do this via a form (that would need to be created) or run a series of delete queries to get rid of the questions 1311-1411 for each category other than commercial.
Delete pkCatQuestionsID from CategoryQuestionsTbl WHERE fkquestionID between 1311 and 1411 and fkCat_ID in (2,3,4,5,6,7,8,9)
You will need a separate delete query for the commercial category since the question numbers involved are a little different
Make sure you have a backup of the database before running the delete query.