The second two are grayed out (WM1 and WM2), while the 1st is highlighted.
Also, when I launch POE, the first menu gives me three options: "Play Pillars of Eternity", "The White March DLC", and "Quit". If I click The White March DLC, it gives me the option to Buy Now! for $14.99. Clicking Restoring Purchases prompts me to sign in to the Mac Store with my Apple ID, but nothing beyond that. If I try to buy it again, the Apple prompt says that it will be restored for free, but again, nothing happens.