Sentence Correction

In 1973 mortgage payments represented twenty-one percent of an average thirty-year-old male's income; and forty-four percent in 1984.
(A) income; and forty-four percent in 1984
(B) income; in 1984 the figure was forty-four percent
(C) income, and in 1984 forty-four percent
(D) income, forty-four percent in 1984 was the figure
(E) income that rose to forty-four percent in 1984

[spoiler]OA Later.
what's wrong with C. By Elliptical construction :
In 1973 <X> represented twenty-one percent of <Y>, and in 1984 <X represented> forty-four percent <of Y>
[/spoiler]

The answer is B

(A) income; and forty-four percent in 1984 <cannot use ";and" >
(B) income; in 1984 the figure was forty-four percent
(C) income, and in 1984 forty-four percent < to me the portion in red sounds like half information with something missing, not a complete expression>
(D) income, forty-four percent in 1984 was the figure <44% of what>
(E) income that rose to forty-four percent in 1984 <income did not rise>

IMO B.
In C we have a comma before 'and'. This means this 'and' should be followed by a clause.However, that is not the case.
I think C would have been correct, had it introduced a subject after 'and':

...income, and in 1984 it represented forty-four percent<of an average....this would be the elliptical part>

c.f.: Manhattan 4th edition, page 54, explanation for last example

OA is B.

I was seeing some kind of elliptical parallelism in C, so I became confuse with C