Explanation:

Let's break down the coding pattern using the given words:

- 'FAINT' = '2014916'

- F = 6, A = 1, I = 9, N = 14, T = 20 (But let's check further)

- Actually:

F (6), A (1), I (9), N (14), T (20)

Writing in reverse: 20, 14, 9, 1, 6 ? That matches '2014916'.

- 'GRME' = '513187'

- G = 7, R = 18, M = 13, E = 5

- Reversing gives: 5 (E), 13 (M), 18 (R), 7 (G) ? 513187

So, the code takes the alphabetical number of each letter, puts them in reverse order, and concatenates them.

Now, for 'POIL':

- P = 16, O = 15, I = 9, L = 12

- Reverse order: L (12), I (9), O (15), P (16) ? 1291516

Now, let's check the options in your list:

- Option 1: 1219516 – doesn't match

- Option 2: 1291561 – doesn't match

- Option 3: 1295116 – doesn't match

- Option 4: 1291516 – matches our pattern

So, 'POIL' will be coded as '1291516'.