Consider the following statements regarding the Citizenship in India:
1. Citizenship clause of the Constitution came in force on 26th January 1950.
2. Indian citizenship provides for 'Single Citizenship'.
3. Citizenship provisions were borrowed from the Canadian Constitution.
Which of the above statements are true?
1. 1 and 2 only
2. 2 only
3. 1 and 3 only
4. 2 and 3 only