PTF97.S3.Q16 - Zebra mussels, a nuisance...

alexazysman

Hey! Can someone help explain why this one has the answer E instead of D?
Admin Note: Edited title. Please use the format: "PT#.S#.Q# - brief description of the question."

JesseWeNeedToCook

Basically the Passage doesn't imply that algae blocks the pipes, It only states that the mussels filter hazardous material.

To give an analogy:

There is a local group of cats. These cats when left to naturally lounge around the entrance of a hospital they block the doorway. These cats are really good at eating rats.

In this hospital there is currently experiments going on in which crazy 100% infectious cat diseases are being implanted in mice.

Yet, when I tie up these cats at the exit of the hospital they are super good of killing and consuming these experiemental mice, preventing the escape of most the experimental mice into the larger world. They also tend to hunt down any rats that might be exiting the hospital.

Which statement seems the most supported:

A) the Rats are going to block the entrance door. if not eaten by the cats.

B ) if a cat eats one of these crazy experimental disease mice, and has no way becoming cured of aformentioned disease, that cat should be considered as infected.