The following units of an inventory item were available for sale during the year.

Beginning inventory	10 units at $55
First purchase	25 units at $60
Second purchase	30 units at $65
Third purchase	15 units at $70

The firm uses the periodic inventory system. During the year, 60 units of the item were sold.

The ending inventory cost rounded to the nearest dollar using weighted average cost is

a.$1,375

b.$1,263

c.$1,150

d.$1,353