a transfer price based on the full cost plus a markup may lead to suboptimal decisions because: group of answer choices it leads the buying division to regard the fixed costs and the markup of the selling division as a variable cost it leads the buying division to regard the variable costs and the markup of the selling division as a fixed cost it leads the buying division to regard the fixed costs and the markup of the selling division as total costs it leads the buying division to regard the variable costs and the markup of the selling division as total costs'