Rumors have swirled around this sighting for decades, but there's still no definitive answer about what Aldrin and others saw. In which sentence below is the word swirled used the same as it is used in the sentence above?
a. The U.S. government admitted that it covered up evidence of aliens traveling to Earth.
b. The U.S. government admitted to secretly studying suspicious objects in the sky.
c. The U.S. government has been trying to hide the existence of UFOs for centuries.
d. The U.S. government has been trying to hide the truth about alien life from its citizens.
