Morgan and Doyle have a business. The production function for that business can be described by the following expression: Y=LL2, where Li = hours of work put in by Morgan and Ly = hours of work put in by Doyle. This production function exhibits: constant returns to scale. increasing returns to scale, i.e., when doubling all inputs increases output by more than double. O decreasing returns to scale, i.e., when doubling all inputs increases output by less than double. O diminishing returns to scale