### a$.$ What are the major problems with fixed$-$location storage layout, and how can these problems be reduced?### b$.$ If you want to store products in random locations, what must the warehouse have to ensure successful random location storage?### c$.$ A warehouse is being built for cross$-$docking purposes. How should the warehouse layout be designed?### d$.$ Company D has a large warehouse storing various heavy and light products. Some products need to be moved quickly to customers, while others can be stored for longer periods. Propose the appropriate material handling equipment for use in this warehouse and explain why this equipment is suitable.### e$.$ Explain the differences between a forklift and a pallet jack in terms of usage and suitability for material handling in a warehouse.### f$.$ If a company has $6$ departments that need to be arranged as shown in the image, create a relationship diagram.