The teacher said, 'The earth moves round the sun.' Choose the correct indirect speech.

1. ক
   The teacher said that the earth moved round the sun.
   
2. খ
   The teacher said that the earth moves round the sun.
   
3. গ
   The teacher told that the earth moves round the sun.
   
4. ঘ
   The teacher said the earth had moved round the sun.