Uno Ltd uses a periodic inventory system and rounds the average unit cost to the nearest dollar. The following data relates to Uno Ltd for the year ended $30$ June $2014$:

$\backslash$table$[[$Opening inventory,$10$ units @ average cost of $$25$ each$],[$January purchases,$10$ units @ $$24$ each$],[$February sales,$8$ units$],[$March product returns,$4$ units$],[$June sales,$6$ units$],[$July purchases,$39$ units @ $$26$ each$],[$August sales,$18$ units$],[$October purchases,$10$ units @ $$24$ each$],[$November sales,$25$ units$]]$

The cost of goods sold for the year using the weighted average method is:

a$.$ $$1528$

b$.$ $$1734$

$*$c$.$ $$1425$

d$.$ $$1984$