Consider the following statements with reference to the 'Global Teacher Prize':
- It is awarded annually to recognise exceptional contributions made by teachers across the world.
- The prize is open only to teachers working in government or public schools.
- The selection process gives importance to innovative teaching practices and impact on student learning.
- It is organised by UNESCO in collaboration with the Varkey Foundation, and carries a cash award of $1 million.
Which of the statements given above is/are correct?