After ann a user left a crowded elevator she discovered her

Question

Does anyone know the answer the following question followed by multiple choice answers:

After Ann, a user, left a crowded elevator, she discovered her smartphone browser was open to a malicious website that exploited the phone. Which of the following is the MOST likely reason this occurred?

1. The user was a victim of an CSRF attack
2. The user was a victim of NFC attack
3. The user was a victim of an IV attack
4. The user was a victim of a bluesnarfing attack