OFFICIAL EXPLANATION
Earthquakes can be lethal, cause extensive damage to property, and kill people.A. be lethal, cause extensive damage to property, and kill people
This answer choice is stylistically flawed. Using both be lethal and kill is redundant since they mean the same thing.B. be lethal, causing extensive property damage and killing people
This answer choice is stylistically flawed and repeats the original mistake. Using both be lethal and kill is redundant since they mean the same thing.C. cause extensive property damage and kill people
Using both be lethal and kill is redundant since they mean the same thing. This answer choice corrects this redundancy by omitting the words be lethal. D. be lethal and cause property damage that is extensive
This answer choice corrects the original redundancy mistake by omitting the words kill people. However, it is still redundant as a result of replacing the three-word phrase extensive property damage with the five-word phrase property damage that is extensive.E. cause extensive damage to property and also kill people
This answer choice corrects the original redundancy mistake by omitting the words be lethal. However, it is still redundant as a result of replacing the three-word phrase extensive property damage with the four-word phrase extensive damage to property and by adding the word also after the word and.