Match the information given in the three columns of the following table          Column I lists two circles. Column II lists certain conditions. Column III lists the suitable value of ‘r’ referred to in column I.C1  :  x2+y2−4x−4y+4=0C2  :  x2+y2−2rx−2ry+r2=0 r>2C1  :  x2+y2−4x−4y+4=0C2  :  x2+y2−2rx−2ry+r2=0r>2C1  :  x2+y2−2x−2y+1=0C2  :  x2+y2−2rx−2ry+r2=0r>1C1  :  x2+y2−2x−2y+1=0C2  :  x2+y2−2rx−2ry+r2=0r>1Which of the following combination is correctly matched ?