Which supporting detail would best complement a topic sentence about the Washington Monument being the tallest structure in D.C.?

The detail that best complements a topic sentence about the Washington Monument being the tallest structure in D.C. is the one that provides specific information about its height and offers a relatable comparison. By stating that the monument stands 555 feet and 5 inches tall, the detail emphasizes its towering presence. Additionally, comparing this height to approximately 50 school buses stacked provides a vivid image that helps the reader grasp the monument's impressive size. This concrete detail reinforces the claim made in the topic sentence, making it more impactful and easier for the reader to visualize the height of the Washington Monument in relation to familiar objects.

Other options, while informative, do not directly support the focus on the monument's height. For instance, details about the Lincoln Memorial or the construction timeline do provide historical context but do not relate specifically to the assertion that the Washington Monument is the tallest structure in D.C.