B) with reference to the determinants of supply, choose a product you would be likely to buy at your favorite store (e.g. an iphone at the apple store) and discuss two or more reasons why the store would increase their supply of your chosen product.

Please answer the following two questions (one paragraph for each should suffice, but the best answers will include appropriate diagrams):
A) With reference to two different determinants of demand, explain why the demand for Levis jeans might decrease (shift inwards, i.e. to the left).
B) With reference to the determinants of supply, choose a product you would be likely to buy at your favorite store (e.g. an iPhone at the Apple store) and discuss two or more reasons why the store would increase their supply of your chosen product.