Essayist: Some researchers criticize British governmental security agencies for not releasing enough information about sightings of unidentified flying objects (UFOs) made by these military and intelligence agencies. Requests for information by civilian researchers are brushed aside. This leads one to suspect that there have been spacecraft sighted near Earth that are extraterrestrial in origin. Which one of the following, if true, would most strengthen the essayist's argument? ['The British government would deny the requests by civilian researchers to have access to the data only if this government had something to hide.', 'The British government is less trusting of civilian researchers than it is of military researchers.', 'The British government would withhold information pertaining to UFOs only if it were established that they were from other planets.', 'The British government has always attempted to deny the existence of UFOs.']