A solid reply.
1. d2d4  1... g8f6  2. c1f4  2... d7d5  3. e2e3  3... c7c5  4. g1f3  4... b8c6  5. b1d2  5... c8g4  6. c2c3  6... e7e6  7. d1b3 The  main move in this reversed Slav defense type of position. Otherwise Black  wants to play Qd8-b6 himself.