Which of the following statements about star rating is true?

Select one:

O a. The first company that used star rating was a car producer.

O b. The origin of the star rating can be traced to the American motorways development in the early 20th century.

O c. The star rating is intended to find balance between what hotel operators provide and what owners would like to have as a return on their investment.

d. The origin of restaurants rating system can be linked with necessity to provide basic information relevant to motorists.