Answer:
The correct answer is 'B'. Due to cutting of pine trees, the squirrels will loose their nesting and food sources.
Explanation:
According to the diagram, both rabbit and squirrel are <em>dependent</em> on the pine trees for their habitat and food.
A food web is the connection of <em>multiple food chains</em> with each other.
If more and more pine trees will be cut, the squirrels will loose their home and the predators will start eating them. Eventually their population will <u><em>decrease</em></u>.
Now, fox also feeds on both squirrel and rabbit. If the population of squirrel decreases, this will cause a <u>decrease</u> in the population of fox also as they will have less food to eat and may move to another place or worse die.