Explanation:

- To decode the word "PORCELAIN," let's substitute each letter based on the given code:

- P is written as T.

- O is written as R.

- R is written as A.

- C is written as M.

- E is written as P.

- L is written as L.

- A is written as I.

- I is written as N.

- N is written as E.

- Applying these substitutions to "PORCELAIN":

- P ? T

- O ? R

- R ? A

- C ? M

- E ? P

- L ? L

- A ? I

- I ? N

- N ? E

- Combining these gives the word "TRAMPLINE."

- Comparing this with the options:

- Option 1: ERAMPLINT

- Option 2: TAMRPLINE

- Option 3: PLINETRAM

- Option 4: TRAMPLINE