Final answer:
b) Modify brush design
The most realistic way of minimizing segmental vibration from the electric polishing brush is to modify the brush design.
Step-by-step explanation:
The most realistic way of minimizing segmental vibration from the electric polishing brush for a dental hygienist like Akanksha is to modify the brush design.
By modifying the brush design, the vibrations produced by the brush can be reduced, resulting in a smoother and more comfortable experience for both the dental hygienist and the patient.
Other options such as increasing work hours, wearing thicker gloves, or changing cleaning technique may not directly address the issue of vibration and may not be as effective as modifying the brush design.