Summer and Winter Olympics, Olympics Flag

Consider the following statements with respect to Olympics.
1) The Summer and Winter Olympics were held in the same year until 1992.
2) The five rings on the Olympic flag represent the five continents of the world North America, South America, Europe, Africa and the Aisa Pacific.
3) The Yough Olympics were held for the first time in 2010 in Athens.

Which of the statements given above is/are correct?
(A) 1 only
(B) 1 & 2 only
(C) 2 & 3 only
(D) 1, 2 & 3

Answer: (B) 1 and 2 only