Explanation:

- Option 1: Turmoil

- Correctly spelled.

- Means a state of great disturbance, confusion, or uncertainty.

- Option 2: Tresure

- This is misspelled.

- The correct spelling is "Treasure".

- Refers to a valuable object or accumulated wealth.

- Option 3: Truthful

- Correctly spelled.

- Describes someone who tells the truth or is honest.

- Option 4: Tamarind

- Correctly spelled.

- A leguminous tree producing edible, tangy fruit.

Given your answer:

- Option 2: Tresure is indeed incorrectly spelled. The correct spelling is "Treasure".