Read the passage.
ufos, or unidentified flying objects, are often the topic of science fiction novels. in reality, ufos are often aircraft, kites, clouds, or meteors that observers are unable to recognize at first glance. a ufo near roswell, new mexico, made headlines in the mid-twentieth century and remains a pop-culture phenomenon. in more modern history, satellite launches have caused rocket debris that is often observed and reported as a ufo.
what is the purpose of this passage?
a. to inform readers about the term "ufo"
b. to entertain readers with a story of a ufo landing
c. to inform readers about government record-keeping
d. to persuade readers to report ufos to authorities