Capitalizing the correct answer makes it far too easy...
Speak for yourself, people learn in different ways and it depends how you use the course content.
Is wasza also correct? I think it would mean your (singular) men ...
Man in Polish is singular masculine, plural masculine personal.
Wasza is Your(plural) singular feminine Nominative
If you wanted to say thy men
Twoi mężczyżni jedzą obiad.
Twoi is your (singular) singular masculine
Wasza is not correct, but Wasi is.
Why is it jedzą instead of jesz? I wrote: twoi mężczyzni jesz kolację
Men is a subject in this sentence. It is plural 3rd person-they.
Jesz means (You (singular)) eat/are eating
Jedzą means (They) eat/are eating.
Example of a context for this one?
A customer with a broken something says to the boss of the men: "Your men are eating dinner when they should be over here fixing my broken something.