Answer:
They compare quantities for particular categories. View the frequency distribution graph about people who regularly use a specific cell phone app
This question actually refers to body parts: otoliths are small structures in your inner ears (in the semicircular canals, so this part is correct) that shift when you move - to help you sense your body position (so this part is also true).
But they're not exactly stones - they are small particles, so that's why the statement is false.
The Hadean era was before rocks were formed so I’d say b) . Hope this helps :)
