To find the pattern, compare each letter in BASIC with its coded version DDULE:
B → D (position 1)
A → D (position 2)
S → U (position 3)
I → L (position 4)
C → E (position 5)
Analyzing the letter shifts using alphabetical positions:
B (2) → D (4): shift of +2
A (1) → D (4): shift of +3
S (19) → U (21): shift of +2
I (9) → L (12): shift of +3
C (3) → E (5): shift of +2
The pattern alternates:
- Odd positions (1, 3, 5): shift by +2
- Even positions (2, 4): shift by +3
Applying the same pattern to LEADER:
L (position 1): L + 2 = N
E (position 2): E + 3 = H
A (position 3): A + 2 = C
D (position 4): D + 3 = G
E (position 5): E + 2 = G
R (position 6): R + 3 = U
Therefore, LEADER is written as NHCGGU in the code.
The answer is Option 1: NHCGGU