Which one of the following statements about a controlled group ofcorporations is NOT correct?

Which one of the following statements about a controlled group ofcorporations is NOT correct?

A) Any controlled group may elect to file consolidated federal income tax returns.

C) All members of a controlled group need not use the parent’s tax year.

B) A parent corporation and its 80%-owned subsidiary make up a controlled group.

D) Members of a controlled group are entitled to only one accumulated earnings tax credit.