A large hospital uses Bluetooth technology for short$-$range personal area networking. The organization has a security concern with bluesnarfing. What is the attacker doing to the organization?

a$.$

Launching highly effective attacks using a peripheral device with malicious firmware

b$.$

Sending unsolicited text messages or vCards to a discoverable device

c$.$

Stealing information from someone else's phone by using an exploit in Bluetooth

d$.$

Compromising any active and unpatched system, regardless of whether discovery is enabled