question:  Why did the Captain decide to change course and skip Jorgensen's World?
context: THE FROZEN PLANET By Keith Laumer [Transcriber's Note: This etext was produced from Worlds of If Science Fiction, September 1961. "It is rather unusual," Magnan said, "to assign an officer of your rank to courier duty, but this is an unusual mission." "Two double planets, all rather close to an unimportant star listed as DRI-G 33987. They're called Jorgensen's Worlds, and in themselves are of no importance whatever. Since they've met no opposition so far in their infiltration of Terrestrial space, they intend to seize Jorgensen's Worlds by force." Magnan leaned back, waiting for Retief's reaction. Unfortunately, Jorgensen's Worlds are technologically undeveloped areas. "I have here," he said solemnly, "information which will change that picture completely." Magnan spread his fingers, folded one down. "If it's trapped for destruction, I suppose—" "I've heard of these Jorgensen's Worlds," Retief said. Overall policy calls for a defense of these backwater worlds. Otherwise the Corps would allow history to follow its natural course, as always." Retief opened the envelope Magnan handed him and looked at the tickets inside. "You'll be traveling with Class X credentials," Magnan snapped. II Retief put down the heavy travel-battered suitcase and leaned on the counter, studying the schedules chalked on the board under the legend "ALDO CERISE—INTERPLANETARY." "But—" Retief picked up his suitcase and walked away toward the glare sign reading To Gates 16-30 . Retief followed the signs, threaded his way through crowds, found a covered ramp with the number 228 posted over it. He picked up his bag, stepped over the man and went up the gangway into the ship. "Which way to cabin fifty-seven, son?" Retief asked. Retief made his way along the narrow hall, found signs, followed them to cabin fifty-seven. They maneuvered it through the door, lowered it, glanced at Retief and went out.
output:  They were avoiding going to Jorgensen's World because of Retief's presence
options:  They were avoiding going to Jorgensen's World because of Retief's presence  The journey was too dangerous and long to travel  Alabaster was a better opportunity for all on board  They had to retreat because of the trouble with the Sweaties