The organization that is primarily responsible for developing GAAP for use by all U. S. companies is the:

C. FASB

Explanation:

The FASB refers to the Financial Accounting Standards Board that is an independent non profit organization who is responsible for developing accounting and finance related standards for reporting with respect to companies and non profit organization in the United states that followed GAAP

So as per the given situation, the option C is correct

answer; /// the above statement is (true);

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