The coding pattern assigns each letter its position in the alphabet.
For HOME = 815135:
H = 8th letter → 8
O = 15th letter → 15
M = 13th letter → 13
E = 5th letter → 5
Concatenating these values: 8-15-13-5 = 815135 ✓
Applying the same pattern to ROAD:
R = 18th letter → 18
O = 15th letter → 15
A = 1st letter → 1
D = 4th letter → 4
Concatenating these values: 18-15-1-4 = 181514
Comparing with the given options:
- 810034
- 181514 ✓
- 351518
- 510035
Therefore, ROAD can be written as 181514.
The answer is Option 2.