Q. Kannan said to Subha, "I'll return the book after I have read it."

• (A) Kannan told Subha that he will return the book after he has read it.
• (B) Kannan told Subha that he would return the book after he has read it.
• (C) Kannan told Subha that he will return the book after he read it.
• (D) Kannan told Subha that he would return the book after he had read it.