Visual Brain Teaser: Which one is the top view of the tower on the left?

If you look at to the tower from the above, the top layer is orange. So, the answer is definitely not C.

The second purple layer will not be seen from the above because it is the same size with the top layer.

And the third layer won't be seen either because it is smaller size then the top two layers.

The fourth layer will be the next one that's going to be seen from the above around the purple layer.

The last one is going to be the largest and and it is orange.

According to these, the answer is going to be A