The Boolean search connector OR is used for which of the following purposes?

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.