Shyam s room has dimensions 6m x 5m x 4m. The room also has a door of dimension 2.5m x 1.2m and a window of dimensions 1m x 1m. What will be cost of painting the four walls of his room if rate of painting is Rs. 2 per sq.m.?

• A. Rs. 410
• B. Rs. 84
• C. Rs. 840
• D. Rs. 168