Businesses Are Said to Be "Related" When

Businesses are said to be "related" when:

A) they have several key suppliers and several key customers in common.
B) their value chains have the same number of primary activities.
C) their products are both sold through retailers.
D) their value chains possess competitively valuable cross-business relationships that present opportunities to transfer resources from one business to another,combine similar activities and reduce costs,share use of a well-known brand name,and/or create mutually useful resource strengths and capabilities.
E) many consumers buy the products/services of both businesses.