The item that would be most likely to keep in a database would be the payroll records. The other items such as address book, financial statements and sales reports would not necessarily be placed in a database.
The answer would be letter A.
Example of intermediate technology is the treadle pump, which enables farmers to provide a greater amount of water to their plants more easily compared to watering by bucket, while requiring much less infrastructure than constructing irrigation dams and pipes.
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Answer:
B (1001)
Explanation:
The AND operator gets you 1's where there are 1's in both inputs. So if you would "overlay" the two binary values, only 1001 remains.