Calculate the prime cost from the following information
Direct material purchased Rs. 1,00,000
Direct material consumed Rs. 90,000
Direct labour Rs. 60,000
Direct expenses Rs. 20,000
Manufacturing overheads Rs. 30,000

A. Rs. 1,00,000

B. Rs. 1,90,000

C. Rs. 1,70,000

D. Rs. 3,10,000

Answer: Option C