Least-sided shape

What is the least sided shape in this image? It must be a closed figure.

http://i61.photobucket.com/albums/h56/calmsavior/Least-sided-Shape.jpg

The D with only 2 sides?

Are these shapes supposed to be orthographic projections of 3 dimensional objects? And we are supposed to figure out which 3D shape would have the smallest number of sides? Is that the puzzle?

Originally posted by sonhouse
Are these shapes supposed to be orthographic projections of 3 dimensional objects? And we are supposed to figure out which 3D shape would have the smallest number of sides? Is that the puzzle?

Originally posted by Gastel
The D with only 2 sides?

Originally posted by XanthosNZ
Objects have faces, vertices and corners not sides.
Gatel solved it.

Originally posted by Coconut
what counts as a side on a D. Clearly the line on the left, but the curved line on the right is all one 'side'?

Originally posted by Gastel
The D with only 2 sides?

Originally posted by Shallow Blue
The C. Depending on whether you count curves as sides, it's either one side, or none.

Richard

Originally posted by XanthosNZ
The C isn't a closed shape and is therefore not up for consideration.

I don't think a curve counts as a side, or else it would count as an infinite number of sides, in which case the answer is E) none of the above.

If we don't count anything with a curved side, it would be the closed part of the A, which is a triangle.

Actually the curve for D isn't a curve, if you look closely, you can see the pixels, which shouldn't be possible for a curve. Therefore, the frame is the least sided figure in the picture.