Researcher Matthew McGlone Manipulated the Message on Pamphlets About the Swine

Researcher Matthew McGlone manipulated the message on pamphlets about the Swine flu (N1H1 flu) so that the flu was seen as an aggressive threat that kills people. On other pamphlets, the flu was described more passively as something thousands of people die from each year. People who read the more aggressive pamphlet ________ the people who read the passive pamphlet.

A) were more likely to get a flu shot than
B) were less likely to get a flu shot than
C) were just as likely to get a flu shot as
D) did not act because their fear was more overwhelming compared to