The correct answer is: C. A formula that either directly or indirectly depends on itself.
A circular reference is a formula in a spreadsheet that refers to itself directly or indirectly. This can happen when a formula in one cell references the value in another cell, and that other cell references the value in the first cell. This can create an infinite loop, where the value in the first cell is constantly being updated, but never reaches a stable value.
Circular references can be difficult to identify and can cause problems with your spreadsheet. If you have a circular reference in your spreadsheet, you will usually see a #REF! error message. To fix a circular reference, you can either change the formula so that it does not refer to itself, or you can use the Solver add-in to find a solution.
Option A is incorrect because a geometric modeling tool is a software application that allows users to create and manipulate 3D models.
Option B is incorrect because a cell that points to a drawing object is a cell that contains a reference to a drawing object on a worksheet.
Option D is incorrect because a circular reference is not always erroneous. It is possible to create a circular reference that is valid and produces the desired results. However, it is important to be aware of the potential problems that circular references can cause, and to take steps to avoid them if possible.