Explanation:

- In the code language, each letter is replaced by another letter according to a certain pattern.

- ‘POUR’ becomes ‘KLFI’.

- P is replaced with K (5 letters back).

- O with L (3 letters back).

- U with F (15 letters back).

- R with I (9 letters back).

- Apply the same pattern to ‘PROJECT’:

- P to K (5 letters back).

- R to I (9 letters back).

- O to L (3 letters back).

- J to Q (17 letters forward in reverse alphabet).

- E to V (21 letters back).

- C to X (21 letters forward in reverse alphabet).

- T to G (13 letters back).

- Check the options to find the pattern:

- Option:1 KMBTIJR (Doesn't match)

- Option:2 KILPUYG (Doesn't match)

- Option:3 KJLRVXH (Doesn't match)

- Option:4 KILQVXG