The average supermarket can offer 40 000+ items to its customers. A quick look at the market

Question:

The average supermarket can offer 40 000+ items to its customers. A quick look at the market can identify as many as 90 different types of shampoos and almost 100 different varieties of toothpaste. One manufacturer of orange juice has over 20 different varieties itself. What does this say about the importance of branding in today's marketplace?