Digital Image Processing (DIP) | Image Enhancement (Spatial Filtering) | Question 1

Question :
Image shown below have size 80 × 40 pixels, with black (0) and white (1).
The white box in the image is 20 x 20 pixels.
What would this image look like after application of?
A 3 x 3 max filter?
A 3 x 3 min filter?
A 3 x 3 midpoint filter?
A 3 x 3 arithmetic mean filter?