Best response to the Queen's Gambit Declined: Cambridge Springs Defense (D52)

1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 e6 5. Bg5 Nbd7 6. e3 Qa5 7. cxd5 · Black to move

What is the best response to the Queen's Gambit Declined: Cambridge Springs Defense (1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 e6 5. Bg5 Nbd7 6. e3 Qa5 7. cxd5)? Black to move. See the top replies ranked by opening theory and real-game results, starting with Nxd5.

The main theoretical reply is Nxd5, reaching the Queen's Gambit Declined: Cambridge Springs Defense, Yugoslav Variation.