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3 Query Processing [10] Emp (Eno, Ename, Title, City) Project(Pno, Pname, Budget, City) Works(Eno, Pno, Resp, Dur) \begin{tabular}{lc} SELECT & Ename, Pname \\ FROM & Emp e, Works w, Project p \\ WHERE & e.Eno = w.Eno \\ AND & e.city = p.Eno \\ AND & p.city = Newark \\ AND & w.Dur >40 \end{tabular} 1. Propose an optimized execution plan (explain) 2. Discuss the index need for further optimizing the query processing