Delacroix discovers a boat adrift, and he retrieves and anchors it. The boat has a number on its side and other evidence pointing to its owner, Elvira. This is

a.	an involuntary bailment when Delacroix retrieves and anchors it.
b.	a bailment once Delacroix gets in touch with Elvira provided Elvira tells Delacroix to hold the boat until she can retrieve it.
c.	an express bailment because of the information regarding the owner of the boat.
d.	not a bailment.