The Conway Production Company produces a certain bulk chemical. The following balances appear in its ledger at 31 December 2016. All figures exclude GST where relevant. Raw material inventory - 1 January $ 40,000 Inventory of finished product - 1 January 110,000 Work In Progress - 1 January 45,000 Production wages 290,000 Indirect wages 70,000 Raw materials purchased 185,000 Purchases of finished product 150,000 Depreciation on factory plant 25,000 Factory power, light and fuel 6,000 Factory supervision salaries 64,000 Sundry factory overhead 80,000 Inventory valuations at 31 December were: Raw materials inventory $ 30,000 Finished goods inventory 140,000 Work In Progress 25,000 Calculate the amount of the factory overhead: Select one: 

a. $70,000 

b. $175,000 

c. $245,000 

d. $80,000