Correct option is A
Sol.

1. 'COFFEE' is written as 'FTKKJH'.
2. 'EXPERT' is written as 'HCUJWW'.
Logic: First letter: +3, Second letter: +5, Third letter: +5, Fourth letter: +5, Fifth letter: +5, Sixth letter: +3
Analysis of 'COFFEE' to 'FTKKJH':
C to F: C+3=F
O to T: O+5=T
F to K: F+5=K
F to K: F+5=K
E to J: E+5=J
E to H: E+3=H
Analysis of 'EXPERT' to 'HCUJWW':
E to H: E+3=H
X to C: X+5=C (Here, it wraps around after Z)
P to U: P+5=U
E to J: E+5=J
R to W: R+5=W
T to W: T+3=W
Applying the Pattern to 'FRENCH':
F + 3 = I
R + 5 = W
E + 5 = J
N + 5 = S
C + 5 = H
H + 3 = K
Therefore, 'FRENCH' is encoded as 'IWJSHK'.
Correct answer is (a) IWJSHK.