It would be A. A bias is like an opinion. It means that it can not be proven. D is a fact. And B and C are facts as well because they can be proven one way or another. You can’t prove that you neighbor drives ‘like a farmer’ because there is no technical definition to what it means to drive ‘like a farmer’.
He sees the eagles arriving,
Answer: For question 3: Sparrow told Crow "I keep my promise. But before you eat me you
must wash your beak for everyone knows that you're a dirty bird and eat lots of nasty things
Explanation: And for question 4: The river refused to give crow water unless he gets a pot to put the water in then river said if he brings the pot he can have as much water as he wants.
Reading through this originally, I thought the answer was A, but the author only compared the snow falling to an avalanche through a simile. I believe the answer is B, because the slight movement he created from pulling those trees caused the entire tree to move and the snow to fall.
The apositive phrase in the sentence is "a challenging field of study"