It's D. The verb 'remain' does not imply to stay some place.
Answer is B. An adjective meaning unfriendly.
Explanation: the descriptive word in front of the noun is an adjective. That was my first clue, the other three are verb, adverb and noun. Then the dog was acting unfriendly by growling and showing his teeth.
Problem solved!
Which are scarce in some areas modifies animals.
are protected by state regulation modifies areas.
The answer is A) her misery at the return of her husband to life
