Random value from table as string (small question)

Questions
1

Hi, i have one table with some words (ex. A ={cat,dog,hamster}) and i want pick one of this words like a string randomly, how can i do this? I think solution is on the surface

2 

function setup()
    A ={"cat","dog","hamster"}
    print("touch screen for random word")
end

function touched(t)
    if t.state==BEGAN then
        v=math.random(#A)
        print(A[v])
    end
end
3

@dave1707 thank you