I think you are referring to a dialogue
Dang, where dem multiple choice questions at tho?
Answer:
Fact
Explanation:
It is not a opinion; there are no arguments, nothing about what the person thinks, and it's stating a fact.
Answer:
B. While walking to school, Hernando met Katalin, then they picked up Siran.
Explanation:
It is the shortest, most grammatically correct, and most precise option to choose from.
Hope this helps!