Write the appropriate values in the prevLSN and undonextLSN columns. Describe the actions taken to rollback transaction T3. Show the log after T3 is rolled back, including all the prevLSN and undonextLSN values in the log records. Write the appropriate values in the prevLSN and undonextLSN columns. Describe the actions taken to rollback transaction T3. Show the log after T3 is rolled back, including all the prevLSN and undonextLSN values in the log records