Here, we have to analyze the options one after the other critically so as to arrive at an agreeable position.

Option A:- Incorrect
The position of the writer is to justify the correctness and appropriateness of the option statement but it is important to know that there's no observable difference between the statement in this option when compared with that in the original statement.

Option B:- correct
Here, the statement seeks to express that there exist a kind of similarity between the two birds in focus i.e their predators are limited in number yet the population of the bird is constantly decreasing as a result of the effect of the use of DDT.

Option C:- Incorrect
The Noun words here i.e the great horned owl and the eagle bird have been used as subjects but the corresponding statement that follows does not seek to link directly with the subject words thereby giving the meaning a different direction. All in all its lacking grammatical correctness.

Option D:- Incorrect
Here, the writer only seeks to highlight that the Bald eagle has small number of natural predators, that's why it used "its population", and leaving out the horned owl which also suffer the same fate.

Option E:- Incorrect
There is a linguistic gap here. When using the comparative analogy it'd be advisable to to include does, i.e has few natural predators as does the great horned owl.