World No. 4 India’s Saina Nehwal won the Swiss Grand Prix 2011 by defeating Ji Hyun Sung of South Korea 21-13, 21-14. She had earlier defeated the South Korean badminton player in which of the following tournaments?
a. Swiss Grand Prix 2011
b. Indonesia Open Super Series in 2010
c. All England Open Badminton Championships 2010
d. Irish Open
Answer: (b)
