Aplayer moves a knight from location (3, 2) to (5, 1) on a chessboard. if the bottom-left square is labeled (1, 1), which description matches the translation?
2 squares up, 1 square right
1 square down, 2 squares left
1 square down, 2 squares right
2 squares down, 1 square right

Translation , in geometry ,is described as the movement of a function or graph to a certain distance.Or simply the transformation of the image to a certain level without rotating or reflecting.
Hence,
Using the idea of translation I have concluded the movement of location (3, 2) to (5, 1) on a chessboard will  result:

2 units to the right and 1 unit down.
1 unit to the right and 2 units up

The answer would be b