Anna and Bea were co-owners of a piece of property worth P1,000,000. For some repairs

thereon, Bea paid P200,000. Because they were co-owners, Anna had to share in said expenses,

and so Anna owed Bea P100,000. Anna sold his share in the property to Carla and Bea also sold his

share in the property to C. later, B brought an action to recover, P100,000 from A. A

claimed that since Carla is now the owner of the property, Carla owes himself, and therefore said

merger had extinguished his debt to Bea. should Anna pay Bea?