A databse T1 has 4000 records and occupies 50 disk blocks.Another table T2 has 300 records and occupies 20 disk blocks.These two tables have to be joined as per a specified join condition that need to be evaluated for every pair of records from these two tables>The memory buffer space available can hold exactly one block of record for T1 and one block of rec for T2 simultaneously at any point in time.No index is available on either table.If nested loop join algo is emloyed to perform join with most appropriate choice of table to be used in outer loop, number of block accesses req for reading data is