The answer is the first one
Irony and satire, i do not know the other one. glad to help in what i can
Well it depends on your lifestyle. If your life is happy, pick a genre you like and think is happy. If it’s sad, pick a sad genre
#1 is too vague and casual. #2 uses slang that wouldn't be used in a college application. #3 uses dated wording.
This leaves us with #4, which offers a personal reason for volunteering ("my grandfather had a heart attack") and is overall written formally. Thus, this would be the most appropriate style and tone for such an essay.
Lisa had never had many friends so when it was time to make them, she did it very solicitously.