Moving to the next question prevents changes to this answer Question 7 1.112 points In designing quality of services: The output of services are heterogeneous, the word heterogeneous means :- a For many companies, no two services are exactly the same b. For many companies, the output of their services are stangible c. For many companies, the output of their serious are simultaneously comed d. For many companies.customers co production always exists Moving to the next question prevents changes to this G 3