Which argument is the best example of logos

a- dad, everybody in school has this computer. i've got to have this computer. if i don't get this computer, i'll be depressed for a year.
b-dad, you know what i'd love? a new computer. it would make me happy. will you buy me a new computer?
c- dad, because i know so much about computers, i can tell this is a good one, so i recommend we get it.

d- dad, you should buy this computer for me because it comes with virus protection software and an extended warranty.

at the beginning of the story, elisa just has the small idea of wanting more attention, but as the story progressed, her desire for more attention grew larger. before she talked to the man with the wagon she was just focused on her chrysanthemums but when she talked to him and got some attention she enjoyed it, so she decided to get all dolled up for henry. but when they were on the way to dinner she was so upset because she saw the flowers on the side of the road and realized the man didn't take interest in her like she thought.