The summary of what happened is right here: https://www.sparknotes.com/lit/gatsby/section7/
Essay means to write a story
Ur missing some information buddy
1.) A.) Algernon eavesdrops on Jack while he's conversing with Gwendolyn.
2.) D.) I believe is the correct answer. Algernon made up the invalid Bunbury in order to travel into the country whenever he pleased.
Hope this helps!