Can help part (c). if possible please answer all thanks

5. A dollar store (where everything costs $1) describes its customers as being a mixture of those people who need to shop there (because they don't have enough money) and those who want to do so (because they enjoy purchasing a bargain). a. Using course concepts to justify your answer explain which of these two groups could be linked to the psychographic basis for segmentation. (5 marks) b. The dollar store sells well-known brands, but the package sizes are different to those sold in competing supermarkets. For example, toothpaste sold in supermarkets in 125ml tubes may be sold in 100ml tubes in the dollar store. Discuss the advantages and disadvantages to the dollar store when it does this. (10 marks) c. It has been observed that many people leave such stores having bought products which they may not have intended to purchase when they first entered. Discuss why this may happen and possible criticisms of stores encouraging such behaviour by consumers. (10 marks)