Describe a situation in which a former C corporation that elected to be taxed as an S

Question:

Describe a situation in which a former C that elected to be taxed as an S may have its S election automatically terminated, but a similarly situated that has always been taxed as an S would not.
Corporation
A Corporation is a legal form of business that is separate from its owner. In other words, a corporation is a business or organization formed by a group of people, and its right and liabilities separate from those of the individuals involved. It may...