What are the choices presented by this evil statue?
I just found a strange "evil" statue in Binding of Isaac.
What are the effects of these offers?
This is not a statue, but Satan, and you have found what's referred to as a "devil room". These two particular items are Sister Maggy (on the left), a familiar that follows you and shoots blood tears in the same direction that you do, and The Mark, which increases your damage by 2 points.
Be aware that the cost depicted in hearts will be deducted from your own heart containers, possibly killing you if you don't have enough health.
As always, all items appear in the game's wiki.