Andersons's Boats will be producing a new line of speed boats and has the choice of a larger production facility with a less laborers or a smaller production facility with more laborers. Each boat will be sold for $$80,000.$ If the large production facility is chosen, the cost to produce each boat will be $$50,000,$ while the cost per boat will be $$64,000$ at the smaller production facility. The large production facility would have fixed costs of $$10$ million and a depreciation expense of $$1,600,000,$ while those expenses would be $$4$ million and $$600,000$ for the smaller production facility. Above what level of expected sales should Anderson's Boats choose the larger production facility alternative to maximize pretax operating cash flow? $($Round final answer to the nearest whole number.$)$

a$\mathrm{.}1,000$ boats

b$.215$ boats

c$.500$ boats

d$.429$ boats