Sigma Nikon or Canon lenses for Sony a390?

Which lenses would be most compatible with a Sony A390 DSLR out of the Sigma AF 70-300mm f4-5.6 DG Macro Canon fit lens or the Sigma 70-300mm f/4-5.6 DG Macro - Nikon AF fit lens.

Neither will be compatible at all. The description already says it - one is for Canon and one for Nikon. You have neither Canon nor Nikon but Sony. You need Sony/Konica-Minolta mount lenses.

That's not a good lens by the way. While you don't need an image stabilizer as your camera has one in the body, save some more pennies so you can get the APO version. That one is much better.

Neither. This one is compatible and, considering it's price, surprisingly decent too.http://www.bhphotovideo.com/c/product/396832-REG/Sigma_508205_70_300mm_f_4_5_6_APO_DG.html