问一道题：NO.PZ2016031101000030

Written materiusein one-on-one presentations. A quarterly report e-maileto multiple existing clients. B is correct. The following finition of \"aertisement\" is proviin the GIPS Aertising Guilines: \"For the purposes of these guilines, aertisement inclus any materials thare stributeto or signefor use in newspapers, magazines, firm brochures, letters, meor any other written or electronic materiaresseto more thone prospective client. Any written material, other thone-on-one presentations aninviclient reporting, stributeto maintain existing clients or solicit new clients for a firm is consireaertisement.\" (See Section 5 of the reang.)这道题啥意思讲的是什么？