Nation A's Real GDP Was $520 Billion in 2013 and $550

Nation A's real GDP was $520 billion in 2013 and $550 billion in 2014. Its population was 150 million in 2013 and 155 million in 2014. On the other hand, Nation B's real GDP was $200 billion in 2013 and $210 billion in 2014; and its population was 53 million in 2013 and 55 million in 2014. Which of the following statements is true?

A) Nation A's GDP per capita increased from 2013 to 2014, while Nation B's decreased
B) Nation B's GDP per capita increased from 2013 to 2014, while Nation A's decreased
C) Nation A's and Nation B's GDP per capita both decreased from 2013 to 2014
D) Nation A's and Nation B's GDP per capita both increased from 2013 to 2014