Consider the following database file indexing setup. How many index file and disk file accesses are needed to locate the record entry for Frank (ID # 18)? Database File ID Last nameDept 10 12 18 25 28 32 37 43 48 50 53 David Carlos Frank Ellen Jones Phvsics Faculty LopezPhyiGrad St James Edward Mary Diaz Evans Rank EE Faculty CS Post doc Faculty Chem Faculty Salary 95 50 105 80 82 25 40 45 Index Table CS ID Pointer 10 25 Bio Post doc EE Post doc ?? CS Bio 53 Grad St Grad St Faculty 25 O a) 1 index file, 5 main file O b) 2 index file, 2 or 3 main file O c) 3 index file, 1 main file O d) None of the above