If CLOUD is coded as ENQWF, how is RAIN coded?

The correct option is TCKP.

To determine how the word RAIN is coded, let us analyze the pattern used to encode the word CLOUD into ENQWF.

Let us look at the alphabetical positions of each letter in the word CLOUD and compare them with the corresponding letters in ENQWF:

1. C to E: C is the 3rd letter, and E is the 5th letter. (Shift of +2)
2. L to N: L is the 12th letter, and N is the 14th letter. (Shift of +2)
3. O to Q: O is the 15th letter, and Q is the 17th letter. (Shift of +2)
4. U to W: U is the 21st letter, and W is the 23rd letter. (Shift of +2)
5. D to F: D is the 4th letter, and F is the 6th letter. (Shift of +2)

We can see that each letter in the original word is shifted forward by 2 positions in the alphabetical order.

Now, applying the exact same pattern (+2 shift) to the word RAIN:

1. R + 2 letters = T
2. A + 2 letters = C
3. I + 2 letters = K
4. N + 2 letters = P

Combining these letters gives the coded word TCKP.