video1.0<iframe src="https://www.loom.com/embed/70fb277ca6e54e97835a6a95e7dd96c1" frameborder="0" width="1280" height="960" webkitallowfullscreen mozallowfullscreen allowfullscreen></iframe>9601280Loomhttps://www.loom.com9601280https://cdn.loom.com/sessions/thumbnails/70fb277ca6e54e97835a6a95e7dd96c1-00001.jpg94a: A) NO CHANGE; B) buildings required; C) buildings, which required; D) buildings that were requiring