In the following passage some words have been deleted. Fill in the blanks with the help of the alternatives given. Passage:
Flood is a common natural disaster. Scientists have often tried to ..........(1) floods. There are a number of reasons that ..........(2) floods, including heavy rain and cloud bursts. Due to these reasons, rivers ................(3) their banks and cover the surrounding land. Sometimes, dams break and cause disastrous floods that ...............(4) to large-scale destruction. Timely safety ...............(5) should be taken to save human life and property.
Select the most appropriate option that will fill in the blank number 2.

Options

A. occur
B. arouse
C. happen
D. cause

Answer

D