We are talking about best practices in the IT industry. The activity service assets that form part of the necessary activities of a company include Asset utilization is a ratio for determining how well a company utilises its available assets to generate a profit. It's a framework around which companies can adapt to meet their own needs.
In the essence of this question is the word 'configuration' and therefore, Option A is the essential activity of the service Asset and Configuration process. The other options are desirable activities for the company, but not necessarily the remit of this arm of the company.