The correct answer is A: "The pecan-covered cake was super moist." Hope this helps!
Answer:
D: communities that use the latest digital technology, particularly computer systems that respond to input from networks of sensors, to deliver city services efficiently and improve urban life
Explanation:
This links back to the main idea of the passage and the writer wants a sentence in order "to help clarify the central concept of the essay."
I'm not sure I would have to say marshes and fields. ....
A fact doesn't need to be cited because it's already been proved true.