Which of the following scenarios reflects the isolation property?

$1.$ Tiffany has updated a customer's address while on the phone with them.

$2.$ The server restarted after Tiffany clicked on save.

$3.$ When the server comes back up$,$ Tiffany was able to verify that the address was updated.

$1.$ In the library database, there are $50$ books available.

$2.$ Billy has checked and there are $50$ books.

$3.$ Sam has checked and there are $50$ books.

$4.$ Billy has taken out $5$ books.

$5.$ The library system informs Sam of the update and Sam now checks that there are $45$ books.

$6.$ Sam checks out $10$ books.

$7.$ There are now $35$ books in the library database.

$1.$ In the flower database, there are $50$ flowers available.

$2.$ Reese has checked and there are $50$ flowers.

$3.$ Reese has attempted to take out $5$ flowers.

$4.$ Which trying to take them out, there was an error in trying to dispense.

$5.$ While checking, there are still $50$ flowers available in the system.

$1.$ A user attempts to do a product transfer between companies.

$2.$ The quantity of the product is moved from the first company.

$3.$ Only once the product is verified to have been deducted, the quantity is moved to the second company.

$4.$ Verification is done and identifies that the total amounts before and after the transactions are not maintained.

$5.$ The transaction is reverted.