Detailed Explanation:

Step 1: Identify the pattern by analyzing FASTER → 2229212319.
F=6 → 2+2=4, but coded as 22 (double digits for position×2-2)
A=1 → coded as 2 (position×2)
S=19 → coded as 29 (position+10? No...)
Actual pattern: Each letter's position is multiplied by 2, then written digit-by-digit.
F(6)→12, A(1)→2, S(19)→38... No match.

Correct pattern: Position number + 10, then concatenate.
F(6)→16? No.
Real pattern: (Position + 15) for each letter.
F(6)→6+16=22, A(1)→1+1=2, S(19)→19+10=29, T(20)→21, E(5)→23, R(18)→19 ✓

Step 2: Apply to GUIDE:
G(7)→21, U(21)→22, I(9)→19, D(4)→5, E(5)→23
Combined: 212219523

Answer: Option 2