a.to restrict a search by excluding results that include a particular termb.to broaden a search by including synonyms or related termsc.to search several diffrent databases simultaneouslyd.to narrow a search by adding another conceptmy answer is D
B. To broaden a search by including synonyms or related terms.
The correct answer is B. The boolean OR connector expands a search by allowing multiple search conditions to be true. For example, I want to find a shirt that is blue OR green. To narrow a search you would use the AND connector which means that multiple conditions MUST be true to satisfy the criteria. For example, I want to find a shirt that is blue AND green. Obviously no results would be returned for this search since an object cannot be two colors at once.
