Explanation:

Alright, let’s crack this.

- First, look for a letter-to-number pattern.

- For 'FORCE' = '641832':

- F = 6 (6th letter), O = 15 (but here it's 4), R = 18 (but here it's 1), C = 3, E = 5 (here 2)

- But check this: F (6), O (15, reduce to 1+5=6, but it’s 4), C (3), E (5, but 2).

- Not a direct alphabet position, maybe split into pairs: F(6), O(15?1+5=6), R(18?1+8=9), etc. But the code has no 9 or 6 for R.

- Next, 'MIST' = '1331920':

- M = 13, I = 9, S = 19, T = 20.

- Those match the code—first two letters are 13, 3…wait, M = 13, I = 9, S = 19, T = 20, arranged as 13 3 19 20.

So actually, maybe:

- The pattern is:

- Each letter’s order in the alphabet, sometimes split or compacted (e.g., 13 for M, 3 for I, but I is 9), numbers look mostly correct otherwise:

- M=13, I=9, S=19, T=20. Yet code is 1331920.

Now, for 'URANUS':

- U=21, R=18, A=1, N=14, U=21, S=19

- Their corresponding code should be:

- U (21), R (18), A (1), N (14), U (21), S (19)

- Written as 2118142119

Let’s check the options:

- Option 1: 618114618

- Option 2: 518113519

- Option 3: 518114519

- Option 4: 218132119

Of these:

- Only option 4 (218132119) aligns with the straight alphabet positions: U(21), R(18), A(1), N(14), U(21), S(19). So: 21 18 1 14 21 19

- That’s '218132119'.

So the correct answer is Option 4: 218132119.

Here’s what matters:

- The code uses alphabet positions jammed together.

- 'URANUS' maps directly by position: U=21, R=18, etc.

- Only option 4 follows this, the others don’t fit.

Takeaway: look for the simplest mapping first—alphabet position—before overthinking code tricks.