Which of the following strategies does Zara employ to reduce the rate of failed product introductions and encourage customer purchases at full price?

?a$.$ ?

Large$-$scale production of each garment

?b$.$ ?

Limited runs of bestseller

?c$.$ ?

Twice$-$a$-$season new style releases

?d$.$ ?

Heavy reliance on star designers

?e$.$ ?

Frequent high$-$value discount offers