Choose the appropriate answer. What devices … you use?

What is the meaning of the following words?
168. built-in camera
a. forming an integral part of a structure or object
b. a part of something
c. consisting of several parts
d. being extracted from the object
169. Personal Digital Assistant (PDA)
a. a handheld organizer used to store contact information, manage calendars
b. a portable device used to observe the people
c. a handheld device to keep money in it
d. a small device which helps people in handling kettle
170. Global Positioning System (GPS)
a. a navigation system using satellites, a receiver and algorithms to synchronize
b. a small device which helps people to keep money in it
c. a portable device with screenshots of locations
d. a handheld organizer used to store contact information, manage calendars
171. Cashpoints
a. Automatic teller machines, which dispense money to customers by the use of a PIN-protected card.
b. Devices, which people use a chip and PIN card to pay for goods and services.
c. Online banking, clients can easily pay bills and transfer money from the comfort of their homes.

d. Computers that store information about the money held by each customer

172. Personal identification number (PIN)
a. a four-digit personal identification number, the same number used at cashpoints
b. Online banking, clients can easily pay bills and transfer money from the comfort of their homes.
c. Devices, which people use a chip and PIN card to pay for goods and services.
d. Automatic teller machines, which dispense money to customers by the use of a PIN-protected card.
173. Fuel consumption
a. the amount of fuel a vehicle uses to travel a particular distance at a particular speed
b. the vehicle is easier to drive
c. the rate which computer uses while functioning
d. engine designers strive for more power
174. Availability
a. the quality of being able to be used or obtained
b. not necessary activity
c. the state of being used by children
d. many things sold at the market
175. Stopovers
a. a stop at an intermediate point in one’s journey
b. a point of journey
c. handheld device for travelers
d. a big place of meetings
176. Download
a. copying data from one computer system to another, typically over the Internet
b. an act or process at court
c. the use of materials on the internet
d. send data over the internet