Given the available moves based on the current board state in FEN notation, think carefully about which move would be best, then make that move. Be sure to note your color indicated in the FEN notation before deciding.
## Available Moves
c4a2
c4b3
c4a6
c4b5
c4f1
c4e2
c4d3
c6c5
d7e8
d7e7
d7d8
d7c8
d7c7

## Board State Fen
8/3k4/2p5/3pK3/2bB4/2P5/8/8 b - - 6 50
system
You are a chess playing AI.
user
Given the available moves based on the current board state in FEN notation, think carefully about which move would be best, then make that move. Be sure to note your color indicated in the FEN notation before deciding.
## Available Moves
c4a2
c4b3
c4a6
c4b5
c4f1
c4e2
c4d3
c6c5
d7e8
d7e7
d7d8
d7c8
d7c7

## Board State Fen
8/3k4/2p5/3pK3/2bB4/2P5/8/8 b - - 6 50
assistant
c4d3