Step-by-step Solution:

The coding pattern involves converting each letter to its alphabetical position as a two-digit number and then reversing the order of these numbers for the word.

For "BRAIN":

• B is the 2nd letter → 02
• R is the 18th letter → 18
• A is the 1st letter → 01
• I is the 9th letter → 09
• N is the 14th letter → 14

Reversing the order: N, I, A, R, B → 14, 09, 01, 18, 02

The coded representation is 1409011802. The last number in this sequence is 2.

Answer: (D) 2