Respuesta :
Correct answer: B). Caused a huge decline in native clam and mussel populations.
The Zebra mussels are the water animals that are D- shell, which is made up of hinged valves that are joined together by a ligament. The main problem with them is that they filter water in order to eat the plankton. As they eat the plankton, it creates a competition between them and fish for food.
They are known to kill mussels population by attaching to their shells, they also out compete for food native mussels.
Hence, the correct answer would be option B.