A state of being. A verb would be: Still or Quiet
The correct answer is D.
In her poem "Dew," Teasdale compares the effect dew has on the ground with how her lover makes her feel.
She explains that, just as dew makes the grass, the fences, the pasture bars and the cobwebs shine, so does the love of her lover makes her see things with a new light; it makes her see even the most common things as beautiful and special.
The answer is A. Since "meager" means something that lacks quantity/quality, this is similar to "barely thought out, with few details."
