An abnormal rise of sea water pushed onshore by a tropical cyclone's strong winds, which caused many deaths during Typhoon Yolanda (Haiyan) in 2013, is called a:

The correct answer is C. Storm surge

A storm surge is a rise in sea level driven by a storm's winds and low pressure. Typhoon Yolanda's storm surge devastated Tacloban and other coastal areas in November 2013. A tsunami, by contrast, is caused by undersea earthquakes or eruptions.