Final answer:
The Field Size property is optional when adding a field to a table in table design view.
Step-by-step explanation:
When you add a field to a table in table design view, the Field Size property is optional.
In table design view, you can specify the size of the field, which determines the maximum number of characters or values the field can hold. However, if you leave this property blank, the field will default to a size that can accommodate a large amount of data.
For example, if you are adding a field to store names, you can set the Field Size to 50, which means the field can hold up to 50 characters. But if you leave the Field Size property blank, it will default to a length that can accommodate even longer names.
When you add a field to a table in table design view, the Description property is optional. The Description property is a text attribute that allows you to provide an explanation about the purpose of the field or how it should be used. However, it is not necessary for the technical functioning of the database. On the other hand, the Field Name and Data Type properties are mandatory because they define the identity of the field and the kind of data it will store, respectively.