B he uses imagery to suggest the character is unreliable
The correct answer is D. There is a change in mood from the quatrains to the final couplet. This is common in the English sonnet that the final couplet is used to change the mood and add new meaning to what was previously said, thus being a sort of a peak for the sonnet.
Dear friend what you can do to stay safe is to maybe go to your room and listen to music to keep calm and go to a spot where you fell safe