Carlsen fights Kramnik over d5

Featured is the rapid chess game between Vladimir Kramnik and Magnus Carlsen from the 2011 Amber Rapid Tournament. Once Kramnik plays d5, a big fight ensues over that key square. Kramnik wants to establish a white piece on d5, and Carlsen wants a white pawn on d5. After the battle over d5 has concluded, the attention turns towards the pawn majorities where Carlsen quickly emerges the victor. Carlsen’s accuracy for this rapid game was 98%.

Vladimir Kramnik vs Magnus Carlsen, 2011 Amber Rapid Tournament

Below the video I have highlighted 2 positions
https://youtu.be/I6X-CmOfaNk

Question 1 of 2: How would you reply?

Question 2 of 2: What is black's best move?

Closing words

Thank you in advance for any likes and/or follows you may give. Any questions or comments you may have can be left on YouTube or in the forum below. If you enjoyed the featured video, you may also enjoy the playlist I've created "Instructive Chess Games". I hope you have, in some way, benefited from this post. Thank you for taking the time to read. -Jerry