This summer, several provinces in the south of China was struck by floods, from effects th

网友回答

A. what
B. which
(答案→)C. whose
D. that
解析：考查非限制性定语从句。句意“今夏，中国南部几省发生涝灾，人们还在遭受洪水的影响。”句中有逗号，是非限制性定语从句，suffer from“遭受......”。what不用于定语从句；which作主语或宾语；whose作定语，意为“谁的”；that作主语或宾语。故选C。