The statement which defines social search is: modifying search results based on a ranking of a webpage.
A social search engine can be defined as an enhanced version of a search engine that is typically designed and developed to combine a traditional algorithm-driven technology with web-based community filtering, in order to efficiently produce highly personalized results for end users.
This ultimately implies that, a social search involves the modification of search results based on the ranking of a webpage, so as to effectively and efficiently produce highly personalized results for end users.
Read more on search engine here: https://brainly.com/question/13709771