The first e-commerce service would be A)Banking. Hope this helps.
Answer:
The most probable reason for this is A.
Explanation:
B should be wrong because the TV being connected to a different network segment still means that it is on the Wi-Fi network, it is just using a different switch or a repeater.
C should be wrong because the brightness of the TV does not have anything to do with being able to connect to the phone.
D should be wrong because in the question itself it says that "you tap the mirroring option on your device" which clearly means that the mobile device supports display mirroring.
The answer should be A, if the device and the TV are not on the same Wi-Fi network, than they simply can not connect and the mirroring can not be done.
I hope this answer helps.
