The correct answer would be A because you need a comma in between the <em>A </em>and <em>S</em>
Both poems deal with the theme of ideas in the air that are related to the conflicts between belief systems related to romanticism. More or less it is the idea of common sense between spiritual and while Ode to a nightingale focuses on this, A slant of light speaks of oppression that's in the air and a fleeting sense of spiritual.
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This period is considered to be a moment of testing boundaries hence why the role of women in literature changed drastically. During this period of time women started to be portrayed as main characters instead of romantic counterparts/secondary characters. Instead of being the emblem of fragility they suddenly became icons of independence and emotional intelligence (hence why they were usually described as able to reveal their feelings and express their thoughts and opinions)
For example both stories portray the stereotypes that all girls want to be popoular, worshipped and the focus of attention and how society tends to discriminate people based on their looks they counter attack those beliefs and instead make the statement that although physical beauty has a great value in society it is not what determines a person's value.
Please let me know if you figure out the answers