Which of the following statements are true concerning the ranking of a diversified company's business units from best to worst? $($Choose every correct answer.$)$

Multiple select question.

Future revenue and earnings for fast$-$growing industries usually look superior to those for slow$-$growing industries.

It is not necessary to take into account past performance of a business unit if the nine$-$cell matrix is used properly.

The rankings help high$-$level executives prioritize businesses for resource support and capital investment.

The position of different businesses in the nine$-$cell matrix is a good criteria for identifying high$-$opportunity and low$-$opportunity businesses.