Pretty sure the answer is E.
<span>Gwendolen portrays Victorian qualities of being superficial. She seems to be untrue about her feelings for Jack by just showing off herself in front of the crowd.
</span><span>Gwendolen's lines imply that her brother is flirtatious. Based on her description, her brother seems to propose to a number of girls.</span>
Depending on the context of the letter, you would need an introduction, a greeting, your reason for writing this letter, what you would want to add to your letter, an ending, and your name at the end.