Chess puzzle for beginners

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laurengoodkindchess

Hi! My name is Lauren Goodkind and I’m a chess coach and chess YouTuber based in California: 

https://www.youtube.com/channel/UCP5SPSG_sWSYPjqJYMNwL_Q

In this puzzle, it's white to move.  Is capturing black's queen on d1 the best move? Why or why not?    This puzzle was taken from a game that I recently played.  

KiwiTai

Nc7 is mate too!