Consider the following statements regarding Goa.
1. In January 1967, the Central Government held a special 'opinion poll' in Goa asking people to decide if they wanted to be part of Maharashtra or remain separate.
2. This was the only time in independent India that a referendum-like procedure was used to ascertain people's wishes on a subject.
3. In 1967, Goa became a Slate of the Indian Union.
Q. Which of the following statement is/are correct?
Correct answer is option 'A'. Can you explain this answer?