To convert inches to feet, you can use the fact that there are 12 inches in a foot.
Jana can leap 36 inches above the ground. To find out how many feet this is, divide the number of inches by 12:
\[ \text{Feet} = \frac{\text{Inches}}{12} = \frac{36}{12} = 3 \]
Therefore, Jana can leap 3 feet above the ground. The correct response is 3.