Which one of the following is not a sufficient ground for convening a joint sitting of both the Houses of Parliament?

• A. Rejection of a bill by one House of the Parliament when the other House has passed it.
• B. Both Houses have finally disagreed as to the amendments to be made in a Bill.
• C. More than six months have elapsed from the date of the reception of the Bill by the other House without the Bill being passed by it.
• D. President has refused to give his assent to the Bill.