You complete your database, and the company begins using it. Shortly afterwards, two GearUp buyers, Cora and Owen, work together
on a sale from a supplier called TennisSource. Both come to you complaining that their entry into the "Supplier History" part of the database is not showing up. Instead, the field reads "invalid entry." What is most likely the problem?
Explanation: A database management system scheme can have multi-user issue when the designing of the system is not made properly. The multi user issue rises when the users concurrently access the data from the database and related error get invoked due to some reason like repeatable reading issue, serialization, etc.
The reading problem is usually can be related to reading of the database in uncommitted manner, uncommitted reading, repeatedly reading etc.Thus, Cora and Owen are accessing the database concurrently which can create multi-user issue.
Depending on what operating system you have my best choice would be D since on some folders you can share permissions with other people. It really depends on what computer you're talking about.
