The correct answer is: B. Is determined by the presentation design but can be changed.
A table object is a rectangular container that can hold text, images, and other objects. The size of a table object is determined by the presentation design, but it can be changed by dragging the handles on the sides and corners of the table.
Option A is incorrect because the size of a table object is not dependent on the amount of text within the table. The amount of text within a table can affect the size of the table, but it is not the only factor that determines the size.
Option C is incorrect because the size of a table object can be changed. The size of a table object is determined by the presentation design, but it can be changed by dragging the handles on the sides and corners of the table.
Option D is incorrect because only option B is correct. The size of a table object is determined by the presentation design, but it can be changed.