It's noun, most probably.
it isn't letting me submit my answer so i will comment on this answer.
because she doesn't think of Paris fondly and doesn't want to marry him. She wants to tell her mother this but doesn't want to disappoint her. She tells her mother that she will keep an open mind about Paris while at the party.
Answer:
1. it has been 10 years since i attended school
2. i know my best friend sam for as long as i remember
3. i have never liked anyone since 4th grade
It is svio because the other ones are wrong