question:  Why does Norris need to collect the Bermuda-K-99 series?
context: Destroying unclaimed units is the smallest part of it. Honey, before the evolvotron, before Anthropos went into the mutant-animal business, people used to elect dogcatchers. With its population legally fixed at three hundred million, most of the country had become one big suburb, dotted with community centers and lined with narrow belts of industrial development. The felines were emotionally safer than the quasi-human chimp-K series called "neutroids." When a pet neutroid died, a family was broken with grief; but most couples could endure the death of a cat-Q or a dog-F. Class-C couples were allowed two lesser units or one neutroid. You will immediately begin a systematic and thorough survey of all animals whose serial numbers fall in the Bermuda-K-99 series for birth dates during July 2234. Seize all animals in this category, impound, and run proper sections of normalcy tests. This could be a ruse to bring a stop to investigations when one animal is found. Hold all seized K-99s who show the slightest abnormality in the normalcy tests. Its replacement-quota of new neutroids was around three hundred animals a month. He tried to estimate how many of July's influx had been K-99s from Bermuda Factory. He wadded the memo in his pocket, then nosed the truck onto the highway and headed toward Wylo City and the district wholesale offices of Anthropos, Inc. They should be able to give him a list of all July's Bermuda K-99 serial numbers that had entered his territory, together with the retailers to whom the animals had been sold. It's a K-48 series, five-year-old, three-year set. You're welcome to it, Doctor, but you can't fake a serial number. Only thirty-five of July's Bermuda-K-99s had entered his territory, and they were about equally divided among five pet shops, three of which were in Wylo City. It found the off-duty sheriff on its third try, in a Wylo pool hall.
output:  It is possible one or more of them may become dangerous.
options:  It is possible one or more of them may become dangerous.  They are female and not neuter.  They are defective. They can only say "mamma", "pappa", and "cookie."  They have Eighteenth order virus.