Briefly define and differentiate between product mix breadth and product mix depth. $(7)$ B$.$ Using these terms, explain the difference between a convenience store $($like a $7-$Eleven$)$ and a supermarket $($like a Giant, Safeway, or Harris Teeter$).(4)$ C$.$ Using these terms, explain the difference between a specialty store $($like an Allen Edmonds shoe store$)$ and a department store $($like Macy$$s or Nordstrom$).(4)$