Final answer:
The correct answer is WLANs. WLAN stands for Wireless Local Area Network and enables the use of wireless devices at the point of care.
Step-by-step explanation:
The correct answer is b. WLANs. WLAN stands for Wireless Local Area Network, which enables the use of wireless devices like PDAs, laptops, and other pervasive computing devices at the point of care. WLANs provide wireless connectivity within a limited area such as a hospital or clinic, allowing healthcare professionals to access information and communicate wirelessly.