The fourth revision is correct. it says who was strolling in the sidewalk.
The verb in this sentence is in the passive voice.
Answer:
B. Animal Friend magazine says, "King penguins... have four layers of feathers to keep their bodies warm and toasty."
Explanation:
Using Ellipsis has to make the connecting sentences make sense.
The answer is one and four.
1 and 4 are generally facts about his life and what he did.
2 and 3 are minor details rather than central ideas.
