with explanation please

A widget manufacturer currently produces 200,000 units a year. It buys widget lids from an outside supplier at a price of $2 a lid. The plant manager believes that it would be cheaper to make these lids rather than buy them. Direct production costs are estimated to be only $1.50 a lid. The necessary machinery would cost $200,000 and would last 10 years. This investment can be depreciated straight-line over the 10 years to a value of zero. The plant manager estimates that the operation would require additional working capital of $30,000 but argues that this sum can be ignored since it is recoverable at the end of the 10 years. Question: If the company pays tax at a rate of 21% and the opportunity cost of apital is 8%, would you support the plant manager's proposal? Yes, I will support the proposal because it will cost. 1,7/5,010 to produce but 2120,386 to buy Yes, I will support the proposal because it will cost 1,780,540 to produce but 2,120,386 to buy Yes, I will support the proposal because it will cost 1,764,393 to produce but 2,120,386 to buy Yes, I will support the proposal because it will cost 1.778,211 to produce but 120,386 to buy