Decode the words using the provided cipher keys.

L $\to$ d
I $\to$ r
F $\to$ u
Y $\to$ n
A $\to$ k
N $\to$ e
D $\to$ n

L $\to$ d
F $\to$ u
A $\to$ k
N $\to$ e
Combining these gives "duke".

The correct option is $\boxed{\text{A. duke}}$.

N $\to$ f
O $\to$ r
P $\to$ i
Q $\to$ e
R $\to$ n
S $\to$ d

f $\to$ N
i $\to$ P
n $\to$ R
d $\to$ S
Combining these gives "NPRS".

The correct option is $\boxed{\text{C. NPRS}}$.

F $\to$ 6
E $\to$ 5
D $\to$ 4
C $\to$ 3
B $\to$ 2
A $\to$ 1

F $\to$ 6
A $\to$ 1
D $\to$ 4
E $\to$ 5
Combining these gives "6145".

The correct option is $\boxed{\text{D. 6145}}$.

Section G

"Zea ( ) ead".

• A. p: Zeap, pead (Not valid words)
• B. r: Zear, read (Zear is not a common word)
• C. s: Zeas, sead (Not valid words)
• D. l: Zeal, lead (Both "Zeal" and "lead" are valid words)
• E. f: Zeaf, fead (Not valid words)

The correct option is $\boxed{\text{D. l}}$.

"Crea ( ) ixer".

• A. m: Cream, mixer (Both "Cream" and "mixer" are valid words)
• B. s: Creas, sixer (Creas is not a common word)
• C. f: Creaf, fixer (Creaf is not a common word)
• D. p: Creap, pixer (Not valid words)
• E. b: Creab, bixer (Not valid words)

The correct option is $\boxed{\text{A. m}}$.