Choose the right variant of the
reported speech:

  Robby said, “They went to the cinema.”

a.  
Robby said that they went to the
cinema.

b.  Robby
said that  they  had 
gone to the cinema.

c.  
Robby said that they had went to the
cinema.

d.  Robby
said    that they have gone  to the cinema.