Question

look at these details from a paragraph about the same topic: the hudson river wetlands are home to several species of mammals, like otters. also, the hudson river has many underwater plants, like water celery. various types of fish, like the american eel, live at the bottom of the hudson river. choose the main, or central, idea that ties all the details together. the bottom of the hudson river is home to oysters and fish. the hudson river is a thriving habitat for plants and animals. the hudson river is full of various underwater plants. humans have changed the hudson river over time.

Explanation:

The details mention mammals, underwater plants and fish in the Hudson River, showing it's a habitat for plants and animals. The first option only focuses on oysters and fish at the bottom, the third only on underwater plants, and the fourth is about human - induced changes which is not mentioned.

Answer:

The Hudson River is a thriving habitat for plants and animals.