Given:
TEACHER is coded as KBADFBM
MATURE is coded as ALONEG

To find:
The code for BOARD

Solution:
We need to find the pattern in the given codes and apply the same pattern to find the code for BOARD.

Let's analyze the given codes:

- In TEACHER, the first letter is replaced with the letter that is two positions ahead of it in the English alphabet. For example, T is replaced with K, which is two positions ahead of T.
- The second letter is replaced with the letter that is one position behind it in the English alphabet. For example, E is replaced with B, which is one position behind E.
- The third letter is replaced with the letter that is three positions ahead of it in the English alphabet. For example, A is replaced with D, which is three positions ahead of A.
- The fourth letter is replaced with the letter that is four positions behind it in the English alphabet. For example, C is replaced with F, which is four positions behind C.
- The fifth letter is replaced with the letter that is five positions ahead of it in the English alphabet. For example, H is replaced with B, which is five positions ahead of H.
- The sixth letter is replaced with the letter that is six positions behind it in the English alphabet. For example, E is replaced with M, which is six positions behind E.
- The last letter remains the same.

Using this pattern, we can find the code for BOARD as:

- B will be replaced with A (two positions ahead)
- O will be replaced with M (four positions behind)
- A will be replaced with D (three positions ahead)
- R will be replaced with J (six positions behind)
- D will be replaced with C (one position behind)

Therefore, the code for BOARD will be AMDJC. However, none of the given options match this code. Hence, the answer is none of the options.

Note: It is possible that there is a mistake in the question or options, and the correct answer is not among the given options.