Select the correct indirect form of: He said, 'I will be reading a book at that time.'

1. ক
   He said that he would be reading a book at that time.
   
2. খ
   He said that he will be reading a book at that time.
   
3. গ
   He said that he would have been reading a book at that time.
   
4. ঘ
   He said that he should be reading a book at that time.