Explanation:

- Acknowledgement is when you recognize or admit something.

- Option 1: Confirmation means verifying something to be true or valid. It's closely related as it involves recognizing a fact.

- Option 2: Elimination involves removing something. It's more about negation rather than recognition.

- Option 3: Compensation is about making up for something, often in terms of payment or reparation.

- Option 4: Confusion refers to a lack of clarity or understanding. It's almost the opposite of acknowledgement, which aims to give clarity.

The correct answer is Option 1: Confirmation.