Modern beer production involves canning and bottling mass quantities of beer at very high speed. This helps ______________ the _________________ and achieve:

1. Reduce; average fixed cost; economies of scale
2. Increase; marginal product of labor; diseconomies of scale
3. Reduce; average product of labor; unit elasticity
4. Increase; marginal fixed cost of labor; profit maximization.
5. Change; elasticity of demand towards 1.00; maximum revenue.