Caroline found a bracelet at the community pool. What could Caroline write to find the bracelet’s owner, and where should she publish it?

A.
She could create an advertising poster to put up at the pool.
B.
She could send an e-mail with a photograph of the bracelet to all of her friends and ask them if they recognize it.
C.
She could write a letter to the pool’s managers suggesting they open a lost-and-found office.
D.
She could publish an informative text on the pool’s website about how often people lose personal possessions at the pool.

(Hint: It’s not C.)