Final answer:
The object name in this search is 'failed_request'. It represents the column of data containing failed request counts.
Step-by-step explanation:
The object name in this search is d) failed_request.
In the given search query, the 'pivot' and 'count' functions are used to manipulate and analyze data. The object name refers to the field or column that is being acted upon or the attribute being measured. In this case, the 'failed_request' is the object name as it represents the column of data containing failed request counts.
For example, if the search query was to find the total number of failed requests in the 'Buttercup_Games_Site_Activity' data, we would use the 'pivot' function to specify the object name ('failed_request') and the data table ('Buttercup_Games_Site_Activity').