If you are referring to Pablo Neruda's poem "Your Laughter," then I believe the correct answer is B. He talks about the flower of his country.
This is what he says in the poem:
I want your laughter like
the flower I was waiting for,
the blue flower, the rose
of my echoing country.
As you can see here, he is connecting his home country and his culture to this flower, and ultimately to her laughter that he so desperately desires to see again.