Rounding only bottom anchor points using direct selection tool

Question

Using Adobe Illustrator CS6, I'm trying to select only the bottom anchor points using the Direct Selection Tool. And apply the following effect: Effect > Stylize > Round Corners

However, all the four anchor points get transformed when I try to do that (I clicked on bottom anchor points only using the direct selection tool).

What could I be doing wrong?

Answer 1

There is good and simple way to do that