Final answer:
In slow right turns on a motorcycle, both the body and the motorcycle should lean into the turn to maintain balance and control. It is not correct to lean only the motorcycle, not lean at all, or to lean the body more than the motorcycle. So, the correct answer is option c.
Step-by-step explanation:
In slow right turns while riding a motorcycle, the correct technique is to lean both your body and the motorcycle into the turn. This action keeps the balance and allows for a smoother and safer turn. Leaning only the motorcycle while keeping your body straight can lead to a loss of balance and control. Similarly, not leaning at all or leaning your body more than the motorcycle is not the appropriate method for navigating a turn.
The dynamics of motorcycle riding require the rider to lean into turns at various angles depending on speed and the radius of the turn, similar to how bicyclists negotiate turns as explained in physics with the concepts of centripetal force and gravitational force balance. So, the correct answer is option c.