human
Question: Noah visited a park that had many oak trees. Which best describes the role of an oak tree in its ecosystem?

Choices:
A) Oak trees can live for a long time.
B) Oak trees have leaves that change colors.
C) Oak trees have strong branches and trunks.
D) Oak trees are a source of food and shelter for animals.
gpt
The correct answer is 3: Oak trees are a source of food and shelter for animals..