The Lakeside Company uses a weighted-average process costing system. The following data are available:

Beginning inventory		-0-
Units started in production		21,800
Units finished during the period		16,800
Units in process at the end of the period (complete as to materials, complete as to labor and overhead)		5,000
Cost of materials used	$	45,980
Labor and overhead costs	$	36,300

Total cost of the 16,800 units finished is:

$84,051.

$69,220.

$74,371.

$82,315.