Correct Answer : Option (D) : All of the above
Correct Answer : Option (C) : Location based
Explanation : Location based tracking is based on geo-location information obtained from device’s location sensors. (Longitude, latitude, altitude etc).
Correct Answer : Option (D) : Smart Glasses
Explanation : Smart glasses are also called as optical head mounted displays. (OHMD), it has the capability of reflecting projected images as well as allowing users to see through it.