If a corporation is incorporated in Delaware, has its main office in New York and does business

Question:

If a is incorporated in Delaware, has its main office in New York and does business in California, but its president lives in Connecticut, in which state(s) can it be sued?
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...