To convert inches to feet, you can use the conversion that 12 inches equals 1 foot.
Given that Jana can leap 36 inches, you can calculate the number of feet as follows:
\[ \text{Feet} = \frac{\text{Inches}}{12} = \frac{36}{12} = 3 \]
So, Jana can leap 3 feet above the ground.
The correct response is 3.