What is the solution to the Wally's World puzzle?

This was a puzzle that a friend sent me (not sure of the origin). Can't for the life of me figure out any pattern, let alone solution. Is empty box.

There are 5 possible solutions for the 9th box listed. I think the answer should be 2. Now, I will "try" to explain!

Second row that can conver to a shap in Row 3. So on that logic the square should conver to circle. Hope this works.

Hell really knows! Going across each row, there is a decreasing number of enclosed spaces. Row 1 starts with three enclosed spaces on the left, then one, then none.

Row 2 goes from 7 to 3 to 1. I like No. 1 for a different reason.

Looking at the corner boxes. So, the bottom right should be top left dis-assembled. The other five boxes are just distractions.

I suspect it of being a parody with no correct answer. I say 3, the triangle. Intersecting arcs are wrongly positioned and a line is missing.

Cross is not in the same position. Another square has been superimposed on the original. Each one has been modified to some degree.

Therefore it should be the solution. I think jackburton is right. Shape in the completed set to remain unique.

Jack, if this were my question, I'd be inviting you to post the answer.