Answer:
Boys' .
Explanation:
These are common examples and how to apply these rules.
The boy's video game console. (It belongs to a single boy.)
The Cathedral boys' will be playing. (Whereas boys' refers to a group of boys.)
When they see something that look familiar, or smell something like food, and when they see some familiar face.
Like if you are in the park playing soccer, and you see some familiar dog that belong to you long time ago.
Can you explain a little more?
"meeting" in the sentence is a noun because it is a thing, more like an event. the definition of a noun is a person, place, or thing. hope this helps!