Which of the following is correct for two companies that want to file a consolidated tax return as an affiliated group?

  a. One company must hold at least 51 percent of the other company’s voting stock.
  b. One company must hold at least 65 percent of the other company’s voting stock.
  c. One company must hold at least 80 percent of the other company’s voting stock.
  d. They cannot file one unless one company owns 100 percent of the other’s voting stock.