The transitions in a phrase is used to connect the ideas with the another without any barupt changes. Transitions help author in letting the reader move from one idea to another efficeiently. Also, it helps in creating realtionship between the main idea and the support for that idea given by the author. For example, therefore, hence, additionaly and so on,
In reference from the above excerpt, transition which best completes this paragraph is: "as a result, the library attracts a wide range of art lovers."
Here, As a result as a transitional word, acts as an final conclusion to the statements.