At a certain diner, Joe ordered 3 doughnuts and a cup of coffee and was charged $ 2.25. Stella ordered 2 doughnuts and a cup of coffee and was charged $ 1.75. What is the price of 2 doughnuts?  Choose the correct choice from the following options
A) $ 0.55	B) $ 1.00	C) $ 1.10	D) $ 1.30	E) $ 1.80
3D + C = 2.25......(1)   2D + C = 1.75........(2)   (1) - (2) --&gt; D = 0.50 --&gt; 2D = 1.0   Answer: $ 1.00
<result>B</result>
At a certain diner, Joe ordered 3 doughnuts and a cup of coffee and was charged $ 2.25. Stella ordered 2 doughnuts and a cup of coffee and was charged $ 1.75. What is the price of 2 doughnuts?