Consider the following statements: 1. Migration does not affect the overall population of a region. 2. Push and Pull factors work simultaneously to encourage migration. 3. Adults are more likely to migrate than any other age group. Which of the above statements is/are correct?

• A. 1 and 2 only
• B. 2 and 3 only
• C. 1 only
• D. 1,2 and 3