Which of the following is not an example of descriptive research?

a respondent’s account of how she was sold lipstick at the makeup counter of a department store
a respondent’s reason for not buying a particular product that was sent in the mail as a sample
a respondent’s description about how a particular brand of candy tastes in his mouth
a respondent’s recent experience of job loss and how it has affected his buying patterns

The tropical storm flooded half of the city and left thousands of people homeless, which the meteorologists had predicted.

Explanation:

An independent clause has a subject and a predicate. It is capable of expressing a complete thought on its own. On the other hand, a subordinate clause is formed by a subject and a verb and starts with a subordinate conjunction or a relative pronoun - in this case, "which". A subordinate clause does not express a full idea on its own, it needs the information expressed by the main clause in order to make sense.

The subordinate clause "which the meteorologists had predicted" lacks information to make sense since it is not attached to an independent clause. By adding "The tropical storm flooded half of the city and left thousands of people homeless" and connecting the subordinate clause to it, we have a complete piece of information. In this case, since the subordinate clause has the function of explaining something said in the independent one, we should separate them with a comma. The result is:

"The tropical storm flooded half of the city and left thousands of people homeless, which the meteorologists had predicted."