What makes simple machines useful for people without enough strength to complete a task?
a. work is reduced, while time is decreased.
b. input force is reduced, while time is increased.
c. power is increased, while distance is decreased.
d. input force is reduced, while distance is increased.

Evaluate the scenario below and indicate how to handle the matter appropriately. situation: michael received an e-mail from what he thought was his doctor’s office, requesting his social security number. since he had just been in to see his doctor last week, he replied to the e-mail with his social security number.