Explanation:

- To decipher the code, observe the shift pattern in the alphabet.

- 'PAIDY' is coded to 'NYGBW':

- 'P' to 'N': Shift -2

- 'A' to 'Y': Shift -2

- 'I' to 'G': Shift -2

- 'D' to 'B': Shift -2

- 'Y' to 'W': Shift -2

- Similarly, 'FORST' is coded to 'DMPQR':

- 'F' to 'D': Shift -2

- 'O' to 'M': Shift -2

- 'R' to 'P': Shift -2

- 'S' to 'Q': Shift -2

- 'T' to 'R': Shift -2

- The pattern is a backward shift by two in the alphabet for each letter.

- Apply this shift to 'HARKG':

- 'H' to 'F': Shift -2

- 'A' to 'Y': Shift -2

- 'R' to 'P': Shift -2

- 'K' to 'I': Shift -2

- 'G' to 'E': Shift -2

Option 2: FYPIE is the correct answer.