Sentence Correction (SC) | Re: Japan has a land area similar to California but fully 128 million in

Japan has a land areasimilar to California but fully 128 million in population, where 23% are over the age of 65, according to the 2010 census.

A) about the same as California but fully 128 million in population, where 23%
B) of a similar size as California is, but in Japan there is a population of fully 128 million, and
C) that is about the same size as California's land area, but in Japan with a population of fully 128 million people, of them
D) similar to the size of California, but fully