In a certain code language, if RAT is written as TCV, then how will PIG be written in that code language?

The correct answer is RKI.

To determine how the word PIG is written in this code language, let's analyze the relationship between the letters in the original word RAT and its coded form TCV.

Let's examine the positional shift for each letter in the alphabet:

1. First letter: R → T
Moving forward by 2 positions in the alphabetical series: R (+2) = T.

2. Second letter: A → C
Moving forward by 2 positions in the alphabetical series: A (+2) = C.

3. Third letter: T → V
Moving forward by 2 positions in the alphabetical series: T (+2) = V.

Thus, the coding rule applied to each letter is to shift it forward by +2 positions in the English alphabet.

Now, applying the same +2 shift rule to the word PIG:

1. First letter: P (+2) = R

2. Second letter: I (+2) = K

3. Third letter: G (+2) = I

Combining these letters gives the coded word RKI.