If in a certain code, ‘POT’ is written as ATOP and ‘TRAP’ is written as APART, then how is ‘ARENA’ written in that code?

The correct option is AANERA.

To find the code for the word ‘ARENA’, let us analyze the coding pattern from the given examples:
1. ‘POT’ is written as ‘ATOP’.
2. ‘TRAP’ is written as ‘APART’.

Let us break down the logical steps used to obtain the code:
Step 1: Reverse the order of the letters in the original word.
Step 2: Add the letter ‘A’ at the beginning of this reversed word.

Let us verify this pattern with the first example, ‘POT’:
- Original Word: P - O - T
- Reversing the letters: T - O - P (TOP)
- Adding ‘A’ at the front: A + TOP = ATOP.
This matches the given code.

Let us verify with the second example, ‘TRAP’:
- Original Word: T - R - A - P
- Reversing the letters: P - A - R - T (PART)
- Adding ‘A’ at the front: A + PART = APART.
This also matches the given code.

Now, we apply the exact same rule to the word ‘ARENA’:
- Original Word: A - R - E - N - A
- Reversing the letters: A - N - E - R - A (ANERA)
- Adding ‘A’ at the front: A + ANERA = AANERA.

Therefore, ‘ARENA’ is coded as AANERA.