<span>There are 6 basic machines and one of which is a screwdriver, now the question asks about the effects these hand tools can have in our health. From the given choices in this item, the most likely answer would be "it lowers the risk of injury", the answer is letter D. However, this can only be done considering that an individual is knowledgeable about the way of using it.</span>
I believe the answer is: A.) It increases your level of physical activity.
Using basic hand tools would create additional burn of calories due to the movements required to operate the tools (such as hammering, twisting, lifting , etc) even though the amount of calories burned would not be as much as cardio or resistance exercises.
