I would love to help, but I cannot help without an image of your poem:)
<span>1. </span>I believe the correct answer is: A. Person
The root of the agent marker, a suffix that follows a word
to modify its meaning, is the sign person as it is a sign that is added to a
sign to produce a profession, role, or identity of what does a person do.
<span>2. </span>I believe the correct answer is: B. Actor or
Actress.
Adding the agent marker to the regular sign act creates the
word actor or actress as the logic behind it is that you add agent marker to
something (in this case act) when you want that something to be a person.
<span>3.</span>I believe the correct answer is A. Actor.
The word actor would use the agent marker when signed, as
you are adding the agent marker to the regular sign act when you want to create
a sign to produce a profession, role, or identity of what does a person do.
If you're referring to Central America, I can only think of Spanish