Many buildings in the earthquake and hundreds of people were rendered homeless as a result.

mushroomed 意為「如雨後春筍般迅速增加」，常用於數量暴增（如商店、問題）。為官方公布之正解，惟與「地震中建築物」搭配在語意上明顯不通，本題答案存在語意爭議（詳見 trap_warning 與 answer_validity 說明）。