Explanation:

Sure, let's decode the pattern:

- The code shifts each letter to the next one in the alphabet. For example:

- 'T' in 'TRAM' shifts to 'U'

- 'R' shifts to 'Q' (moving backwards in this case)

- 'A' shifts to 'B'

- 'M' shifts to 'L'

- Similarly, for 'PAST' to 'QZTS':

- 'P' shifts to 'Q'

- 'A' stays 'Z' manually, not via a linear shift

- 'S' shifts to 'T'

- 'T' stays 'S' manually or shifts backwards

- For 'DEED':

- 'D' shifts to 'E'

- 'E' stays the same or uses non-linear logic

- 'E' could follow consistent pattern

- 'D' shifts to 'C’ or follow a different pattern

By the above logic and looking at options:

Option 4: EFCD