Consider the following actions:
Detection of car crash/collision which results in the deployment of airbags almost instantaneously
Detection of accidental free fall of a laptop towards the ground which results in the immediate turning off the hard drive
Detection of the tilt of the smart-phone which results in the rotation of display between portrait and landscape made
In how many of the above actions is the function of accelerometer required?
a. Only one
b. Only two
c. All three
d. None