Apple is considered to have a reputable brand in the technology industry, and Apple products are often priced higher than other industry offerings. Applying VRIO framework to Apple brand (as a specific resource), which of the following statements is true?

a	Apple brand as a resource is fairly easy for rivals to imitate.
b	Apple brand increases the perceived value of Apple's products and services, and thus economic value creation.
c	The value of Apple brand is not likely to erode over time.
d	A reputable brand name such as Apple's is not rare in the industry.