Choose the correct indirect speech of: The teacher said to the boys, 'Let us play a friendly match.'

1. ক
   The teacher proposed to the boys that they should play a friendly match.
   
2. খ
   The teacher told the boys to play a friendly match.
   
3. গ
   The teacher suggested the boys to play a friendly match.
   
4. ঘ
   The teacher asked the boys if they would play a friendly match.