The area of circle O is added to its diameter. If the circumference of circle O is then subtracted from this total, the result is 2. What is the radius of circle O?	Choose the correct choice from the following options:
A) –2/pi B) 1 C) 3 D) 4 E) 5
pi*r^2 + 2r -2*pi*r = 2   Simplifying the equation: pi*r(r-2)+2r=2   Without much algebraic: We can Test the answers quickly, then 1 is the only possible answer that will eliminate pi from equation.   Answer is 1
<result>B</result>
The area of circle O is added to its diameter. If the circumference of circle O is then subtracted from this total, the result is 2. What is the radius of circle O?