What advanced feature does the i-LIMB provide to Nick's dad?

The i-LIMB provides advanced versatility in movement, which is a significant enhancement compared to traditional prosthetic limbs. This ability allows users to perform a wider range of motions and tasks, mimicking the natural movement of a human hand and wrist. By incorporating multiple articulating digits and sophisticated technology, the i-LIMB enables its user to grasp various objects with different grip patterns, from holding a bottle to typing on a keyboard. This level of functionality can greatly improve a user’s daily life, allowing for more independence and the ability to engage in activities that would be challenging with a traditional prosthetic arm.

The other options, though they touch on other aspects of technology and functionality, either do not accurately represent the primary selling point of the i-LIMB or refer to features that might not be specific to it, such as full sensory capability or wireless connectivity, which may not be characteristic features of this particular prosthetic limb.