The correct answer is B. IEEE 802.15.
IEEE 802.15 is a family of standards for wireless personal area networks (PANs). PANs are short-range wireless networks that connect devices within a few meters of each other. Bluetooth is a wireless technology that uses short-range radio waves to connect devices such as mobile phones, computers, and printers. It is a popular choice for PANs because it is easy to use and relatively inexpensive.
IEEE 802.15.1 is the most common standard in the IEEE 802.15 family. It specifies a physical layer and a medium access control (MAC) layer for low-rate wireless personal area networks (LR-WPANs). LR-WPANs are designed for applications that require low power consumption and low data rates, such as wireless mice, keyboards, and headsets.
IEEE 802.15.4 is another common standard in the IEEE 802.15 family. It specifies a physical layer and a MAC layer for high-rate wireless personal area networks (HR-WPANs). HR-WPANs are designed for applications that require higher data rates, such as wireless sensors and home automation.
IEEE 802.15.6 is a newer standard in the IEEE 802.15 family. It specifies a physical layer and a MAC layer for ultra-wideband (UWB) wireless personal area networks (UWB-PANs). UWB-PANs are designed for applications that require very high data rates and low latency, such as medical imaging and industrial automation.
A. IEEE 802.11b is a standard for wireless local area networks (WLANs). WLANs are wireless networks that connect devices within a few hundred meters of each other. Bluetooth is a wireless technology that uses short-range radio waves to connect devices within a few meters of each other. Bluetooth is not a WLAN technology.
C. IEEE 802.11g is a standard for wireless local area networks (WLANs). WLANs are wireless networks that connect devices within a few hundred meters of each other. Bluetooth is a wireless technology that uses short-range radio waves to connect devices within a few meters of each other. Bluetooth is not a WLAN technology.
D. IEEE 802.16 is a standard for wireless metropolitan area networks (WMANs). WMANs are wireless networks that connect devices within a few kilometers of each other. Bluetooth is a wireless technology that uses short-range radio waves to connect devices within a few meters of each other. Bluetooth is not a WMAN technology.