Q: 60 (NDA-I/2014)

Consider the following statements about grand slam tennis tournaments:
1. There are four grand slanm annual tennis tournaments.
2. The first grand slam of a year is the US Open.
3. The Australian and the US tournaments are played on grass court
Which of the statements given above is/are correct?
question_subject: 
Current Affairs
stats: 
0,632,224,160,56,632,8