Opportunity cost. Richardses' Tree Farm, Inc. has branched the slab of concrete three years ago. It would now cost $15,000 to put in the same siab of concrete. expanding its outdoor garden shop to include patio furniture? If yes, which value should it use? Should best response.) into gardening over the years and is now considering adding patio furniture to its product lineup area where the patio furniture is to be displayed is a vacant slab of concrete attached to the indoor shop. The company originally paid $8.000 to put in Should the company consider the concrete the company consider the concrete slab when expanding its outdoor garden shop to include patio furniture? If yes, which value should it use? (Select the O A. Yes, use $8,000 as the cost a sunk cost unless there is another use for the slab that could provide cash fow to Richardses' Tree Farm. The aditional cash flow that the provide is the opportunity cost, not the current replacement cost or the oniginal cost. O c. Yes, use S 15,000 as the cost