Respuesta :
Answer:
a. Microphone
d. Wi-Fi antenna
Explanation:
The wifi antenna , is present in the screen bezel , and the two cables are connected to the motherboard and the wifi adapter .
Hence , we need to be aware of the wifi antenna , before installing the webcam .
Microphone , as in most of the laptop , the microphone is present just near the screen bezel , and hence , need to be aware of before the installation process of the webcam .