Two clerks at Pitt Fitness need to update an address in the Access database for the customer Min Jee Choi. One clerk sees a note about updating the address and begins to edit Min Jee’s record. At the same time, another clerk receives a phone call from Min Jee about changing the address and opens the Customers table. She sees a pencil symbol next to the record for Min Jee Choi and cannot change the address. What is happening with the database?

a. Min Jee’s record cannot be changed. Once you enter an address in the Customers table, it can never be altered or deleted.

b. The record is locked from editing by any user except the first clerk. Only one person can edit a record at one time.

c. The entire database is read-only because the first clerk is working on changing the record.

d. The database has been corrupted because two people are working on the record at the same time.