Suppose the current data (instance) of the department table and the instructor table are: department: dept name building budget History Olmsted 500.000 Physics Swatara 400,000 Accounting Captial Union 600,000 instructor: id name dept_name salary 12345 McConaughey Accounting 120,000 34123 Hopkins History 80,000 98765 Green Physics 80,000 56789 Streep Accounting 130,000 What is the result of each of the following expressions ? a) Ildept name (instructor) b) IIia.name ( salary>100,000 (instructor)) c) Oid="12345(instructor x department) d) instructor department