A file has 40,000 Student records of fixed-length. Consider a disk with block size B-512 bytes. A block pointer is 8 bytes long and a record pointer is 7 bytes long. Each record has the following fields: Attributes Size (in bytes) StudentlD Name Sex CourseMajor Phone Address DoB Status 9 10 9 8 a. Calculate the record size R in bytes. b. Calculate the blocking factor bft and the number of files blocks b assuming an unspanned organization c. Suppose the file is ordered by the key field StudentlD and we want to construct a primary index on it. Calculate the index blocking factor bfti