Consider the following statements regarding Sukanya Samriddhi Yojana:
1. A Sukanya Samriddhi account can be opened in the name of a girl child till she attains the age of 5 years.
2. Sukanya Samriddhi accounts can be opened in post offices and in designated public banks.
3. The account can be closed after completion of 21 years.
Which of the statement (s) given above is/ are correct?