Explanation:

- In the code language, 'BROWN' is transformed to 'ORBNW'. Let's break down the transformation:

- The letters seem to be rearranged but not simply reversed or jumbled randomly.

- The first and last letters stay in place: B ? B, N ? W, indicating a pattern in placement.

- To find out how 'LUCKY' becomes a code, we need to apply a similar pattern:

- 'L' becomes 'C'

- 'U' becomes 'U' (same position)

- 'C' becomes 'L'

- 'K' becomes 'Y'

- 'Y' stays the same

- Now, let's apply this to the word 'LUCKY':

- Looking at different options, Option: 2 (CULYK) fits this pattern.

Option 2: CULYK is correct.