Final answer:
The fasciculus cuneatus carries sensory information from spinal nerves C1 to C7 and T1, involving the upper body, including the upper limbs and the trunk above T6. Option A) C1-C5 is more accurate for specifying the vertebral levels associated with the fasciculus cuneatus.
Step-by-step explanation:
The fasciculus cuneatus is a lateral division of the dorsal column system, which is composed of fibers from sensory neurons located in the upper body and is part of the spinal cord's white matter. The fasciculus cuneatus carries proprioceptive and fine touch information from the upper body, which includes the upper limbs and the trunk above the level of T6. In terms of vertebral levels, the fasciculus cuneatus carries information from spinal nerves C1 to C7 and T1. Thus, it corresponds with options A) C1-C5 and part of B) T1-T6, but A) is more accurate since it encompasses the full set of cervical nerves contributing to the fasciculus cuneatus.