In a poker game, a blue chip is worth 2 dollars more than a red chip, and a red chip is worth 2 dollars more than a green chip. If 5 green chips are worth m dollars, then which of the following represents the value, in dollars, of 10 blue chips and 5 red chips? 

A) 50 + 3m 

B) 18 + 60m 

C) 40 + 3m 

D) 28 + 20m