The Revenue Agent Who Audited Mr

The revenue agent who audited Mr. and Mrs. Vento's Form 1040 assessed a $49,200 tax deficiency. The Ventos strongly disagree with the result of the audit. What is their first step in contesting the result?

A) They may request that a different revenue agent conduct a second audit.
B) They must appeal the result of the audit to the regional Appeals Office of the IRS.
C) They must pay the deficiency and sue the federal government for a refund.
D) They must file a petition with the U.S. Tax Court.