Answer:
b.brand dilution
Explanation:
Brand dilution -
It occurs when the value of the brand reduces due to its overuse , and the value of the reduced as it does not meet to the expectations of the customers , is known as brand dilution .
hence , from the question ,
As Ferrari is a very famous and reputed luxury sports car brand , and the the brand name can be diluted as it introduces 68 different products .
hence , from the question ,
The correct term from the given statement is Brand dilution .