Final answer:
So the correct answer is Option 3. The height of the bush is 3 feet.
Step-by-step explanation:
To solve this problem, let's assign a variable to represent the height of the bush. Let's call it 'h'. According to the information given, the bush is 3 feet shorter than the fence, which we can represent as '4h - 3'. The fence is described as 4 times as high as the bush, so we can express its height as '4h'. Setting up the equation, we have: '4h = 4h - 3'. By simplifying the equation, we find that 'h = 3'. Therefore, the height of the bush is 3 feet.