question:  What makes the protagonists become less concerned about being trapped by the beasts?
context: For Click and Irish were marooned on the pirate's asteroid—their only weapons a single gun and a news-reel camera. [Transcriber's Note: This etext was produced from Planet Stories Spring 1944. Hathaway only knew he was picked up and hurled against a lever-bank, and that Marnagan wasn't long in following, swearing loud words. A sweeter one still of Marnagan beating hell out of the controls and keeping his words to himself until just now. They both waited, thrust against the shipside and held by a hand of gravity; listening to each other's breathing hard in the earphones. Hathaway felt himself grabbed; he and Marnagan rattled around—human dice in a croupier's cup. They stood in the middle of a pocked, time-eroded meteor plain that stretched off, dipping down into silent indigo and a rash of stars. Space-meteors are never hot and glowing. "It's not proof we need now, Click. Oh, God, this would make great news-release stuff if we ever get back to Earth. There wasn't much to see, but it was better than standing still, waiting. After that—right or wrong—you'll be Cosmic Films prettiest unmoving, unbreathin' genius. It's times like this when we all need words, any words, on our tongues. The immense things rolled, slithered and squirmed after him. Click's voice gasped it out, as Marnagan squeezed his two-hundred-fifty pounds beside him. Instinctively, Hathaway added, "Asteroid monsters! Something about these monsters and Gunther and— "Which one will you be having?" asked Irish, casually. You're doing nothing but sitting, looking like a little boy locked in a bedroom closet, so take me a profile shot of the beasties and myself." "Then," retorted Marnagan, "we'll develop it for our own benefit; while waitin' for the U.S. Cavalry to come riding over the hill to our rescue!"
output:  They realized the beasts were not actual beasts, but were meant to seem real.
options:  They realized that the beasts were not actually interested in hurting them, so they were able to calmly leave their hiding spot.  They realized that the beasts were too big to fit into the space they were in, so they could camp out in that spot indefinitely.  They realized the beasts were not actual beasts, but were meant to seem real.  They realized that the beasts die when their photo is taken, and they had captured many of the beasts on camera.