Question $1$ of $20$ :

Select the best answer for the question.

Why is it potentially dangerous to scan a QR code with your mobile device?

A$.$ Smartphone cameras have no built$-$in security to protect against fake QR codes.

B$.$ Scammers can send malware to your device if you scan the QR code.

C$.$ QR codes are only used by scammers, never by legitimate businesses or advertisers.

D$.$ All QR codes contain computer viruses.