Nation a's real gdp was $520 billion in 2015 and $550 billion in 2016. its population was 150 million in 2015 and 155 million in 2016. on the other hand, nation b's real gdp was $200 billion in 2015 and $210 billion in 2016; and its population was 53 million in 2015 and 55 million in 2016. which of the following statements is true?
multiple choice
a. nation a's gdp per capita increased from 2015 to 2016, while nation b's decreased.
b. nation a's and nation b's gdp per capita both increased from 2015 to 2016.
c. nation b's gdp per capita increased from 2015 to 2016, while nation a's decreased.
d. nation a's and nation b's gdp per capita both decreased from 2015 to 2016.

Morei would really appreciate it. his eyes snapped open. a musty smell flooded his senses. the room was lowly lit, curved with smooth light gray walls. the floor was clear black tiled. he stood up, surprised to see no door, but only a trap door on the ceiling that blended in with the walls. the room was unfurnished, which struck him as strange. as you write and revise, ask yourself these questions: 1. do all of the sentences in this paragraph belong here? (unity) 2. are all of the sentences in this paragraph in the right place? (coherence-- a method of development) 3. are all of the sentences in this paragraph smoothly connected together into a whole paragraph? (coherence--use of transitional devices) once you've made certain that your paragraphs are both unified and coherent, edit your work for problems in grammar and mechanics before submitting it to your teacher.