Five girls were walking home from school. The youngest of the girls, named Lucy, came upon an old metal lunch box. She picked it up but before she could open it, the oldest girl, Barbara grabbed the lunch box and passed it to Alma, who then passed it to Christine, who then passed it to Debbie. Each controlled it for a short time. At some point in the course of play, the lunch box broke open and out spilled a diamond necklace, worth $10,000. Under the reasoning employed by the courts in Pierson v. Post and Popov v. Hayashi, whose property is the diamond necklace?

A. Lucy in fee simple absolute.

B. All five of the girls as joint tenants with right of survivorship.

C. Barbara, Alma, Christine and Debbie by adverse possession.

D. All five of the girls hold equal shares in the necklace.