I need the missing answer for 9.2

on the XML document below 9. Answer the following questions cbibso cbook prices "100t> publisher> Addison-Wesley clastname> Hull cauthoro cdirstname> Rick caddress> Hermosa Beach CA 90254 author ctitie> Foundations of Databases cbook pricea"55 xpublisher> Freeman Jeffrey D. clastname> Ullman /author cauthors cfirstname> Michael clastname> Stonbraker c/lastname /author ctitle> Principles of Database and Knowledge Base Systems e/book> e/bib> bib> book prices "70> epublisher> Addison-Wesley /publisher cauthor> cname> Michael Carey oundations af arabs cpaper price 60> epublisher> Freeman cauthorinfo>-cname> Jeffrey D. Ullman came> caddress>Manhattan Beach 90254 ctitle> Principles of Database and Knowledge Base Systems /title /bib Assuming that root element is bibs, what is the following XPath would return? Write the answer in XML 9-1) /bibs/bib/book/l@prices "50"]/author/lastname ull ustnue 5%nivaler ermosa Te-ch 9-2) //author/address c