Where did "your" translate from?
I see your point. It is one of those implied things. The use of "kau" would create "your."
Hoa is kino-O not kino-A.
It is implied.
I feel that my submission (Greet all of your friends) should be accepted
Now I'm dinged for writing "Say hello" rather than "Say hi" and possibly for writing "all of" rather than "all." Seems petty and picky.
Report such things as Your answer should be accepted.