question:  What is the simplest description of what Miss Meuhl and Retief are in the minds of the Groacian race? Why is this significant to the story?
context: [Transcriber's Note: This etext was produced from Worlds of If Science Fiction, March 1962. I "The Consul for the Terrestrial States," Retief said, "presents his compliments, et cetera, to the Ministry of Culture of the Groacian Autonomy, and with reference to the Ministry's invitation to attend a recital of interpretive grimacing, has the honor to express regret that he will be unable—" "You can't turn this invitation down," Administrative Assistant Meuhl said flatly. "Miss Meuhl," he said, "in the past couple of weeks I've sat through six light-concerts, four attempts at chamber music, and god knows how many assorted folk-art festivals. I've been tied up every off-duty hour since I got here—" "You can't offend the Groaci," Miss Meuhl said sharply. "Well," Miss Meuhl said, snapping off the dictyper. "You've been here on Groac for four years, Miss Meuhl. "Mr. Retief, those are just the sort of questions we avoid with the Groaci. "The impossibility of access to outworlders. An elaborate one picked out in pinkish paint seemed to indicate the Groacian equivalent of a bar. A Groacian bartender was dispensing clay pots of alcoholic drink from the bar-pit at the center of the room. He looked at Retief and froze in mid-motion, a metal tube poised over a waiting pot. Retief backed, rounded a corner into a narrow alley-like passage, deserted, silent ... except for the following Groacian. Miss Meuhl said, eyeing Retief over her lenses. Two Groaci wearing heavy eye-shields and elaborate crest ornaments indicative of rank rose as Retief entered the room. "I'll not be a party—" "You'll do as you're told, Miss Meuhl," Retief said quietly. "All our efforts," Miss Meuhl said, "to live down that terrible episode! I understand that a Terrestrial task force stood off Groac and sent a delegation down to ask questions.
output:  They are aliens. This is significant because Groacians see humans as alien to their planet, which helps the reader understand how prejudice develops on Groac.
options:  They are illegal space travelers. This is significant because the crimes of explorers like them are what prompted the Groaci to hide the first human cruiser that arrived.  They are colonialists. This is significant because it is Miss Meuhl and Retief’s desire to colonize Groac that fuels the Groacian hatred of foreigners.  They are slaves. This is significant because it helps the reader understand that Retief is lashing out as a result of being oppressed for so long.  They are aliens. This is significant because Groacians see humans as alien to their planet, which helps the reader understand how prejudice develops on Groac.