Answer:
okay actually what are you trying to get an answer for
Explanation:
A technician's first step with an A/C system is to perform visual inspection
Sanscript i think idk i need points
Answer:
RFID scanning or Barcode reader
Explanation
Smart refrigerators have inbuilt RFID scanning technology that help monitor the stock that is inside your fridge. Once you pass your items through the inbuilt RFID scanner in the fridge, the barcode of your items is cross-referenced with a database and given a unique tag for identification. This technology helps detect and track the stock that is inside your fridge and when you start running low, the RFID can be triggered to send a reminder as a notification on your email or a text message.
D because you are always supposed to use your schedule