Answer: b test point: the prepositional object. Analysis: behind the preposition for Bell nominal composition as its object. 4 answers, only (b) is a noun sundials for noun phrases, prepositional object can be made.
Answer: B test point: preposition. Analysis: The preposition for the back of the ingredients to be a noun as its object. 4 answers only (B) is the center of the word as a noun phrase sundials can be used as object of a preposition.
Answer: B test point: the preposition object. Analysis: "for" should be followed in nominal composition as the object. Only (B) in the 4 answer is a noun sundials as the central word phrase, can be used as a preposition object.