B. Matrix Str C Geographic Structure. 12- Hisham and Shaima started an interior design business five years ago. At first, it was just Hisham taking care of the business side of things while shaima focused on design, but as the business grew, they hired people to help. Now they have a team of 20 organized into the following areas: designers, operations and finance, sales and marketing, and purchasing. What kind of structure have they implemented in their business?