Consider the data below and answer the questions based on it.
Factory Expenses = Rs. 30000
Administrative Expenses = Rs. 20000
Labour Cost = Rs. 25000
Materials = Rs. 35000
Selling Expenses = Rs. 10000
Ascertain the prime cost with the help of the given cost data.

A. Rs. 50000

B. Rs. 60000

C. Rs. 70000

D. Rs. 80000

E. Rs. 90000

Answer: Option B