Answer:
C. transportation
Step-by-step explanation:
Magnetic levitation technology is able to create frictionless movements, which remarkably would improve transportation. The best example for this is Maglev, which is derive from magnetic levitation. Basically, Maglev is a transportation system that applies magnetic levitation, includes suspension and guide. Basically, a magnetic system is used, those magnetic fields allow to suspend the train which means zero friction, then other magnetic fields are managed to give direction and power.