once upon a time there was a boy named cupid and his job was to make people fall in love. But on one sunny day cupid was walking around when he saw a very pretty lady and he went up to her and introduced himself and there basically got to know each other and after a while cupid asked her to his girlfriend and she said yes and they lived happily ever after
Silent spring is the name
It seems like its (d), because when they removed the VNOs the mating was effected.
I am thinking absolute. An absolute phrase has a subject, but not an acting verb, so it cannot stand alone as a complete sentence. It modifies the whole sentence, not just a noun.