River beds which are abandoned through the natural change in the course of the water belong to whom?

• A. Owners whose land are occupied by the new course in proportion to the area lost.
• B. Owners whose land are occupied by the bed course in proportion to the length of the area lost.
• C. Owners of the land adjoining the old bed in proportion to the area lost.
• D. Owners of the land adjoining the new bed in proportion to the area lost.