Explanation:

Alright, let's get straight to the pattern in that code language:

- Let's start by comparing 'TRUCKS' to 'GIFXPH':

- T?G (Shift +13)

- R?I (Shift +17)

- U?F (Shift +11)

- C?X (Shift +21; looping backward)

- K?P (Shift +5)

- S?H (Shift +13)

- Then 'WASTE' to 'DZHGV' lines up:

- W?D (+13)

- A?Z (+25; or -1)

- S?H (+13)

- T?G (+13)

- E?V (+17)

So the rule is each letter is shifted by a certain amount (usually +13 or +17), but some letters (like C?X, which is -5) suggest it can loop backward.

But mainly, for 'FANTASY', using the discovered pattern (likely +13 to most letters):

- F?U (+13)

- A?Z (+25; looks like -1)

- N?M (-1)

- T?G (+13)

- A?Z (-1)

- S?H (+13)

- Y?B (+13)

So, the correct coded word is UZMZGHB.

Let's look at the options:

1. UZGMZHB – G in the third place, should be M, so nope.

2. UZMGZHB – M and G swapped, order issue, not correct.

3. UZMGHZB – Mix-up in letter order, not matching the decoded rule.

4. UZMZGHB – This fits the right shifting pattern.

The correct answer is Option 4: UZMZGHB.

What this really means is: To crack this kind of code, you have to look for letter shifting, notice any loops, and check your logic step by step against actual examples. Option 4 is the one that keeps the logic intact for every letter.