Jinger wrote:94. Last year, land values in most parts of the pinelands rose almost so fast, and in some parts even faster than what they did outside the pinelands.

A) so fast, and in some parts even faster than what they did
B) so fast, and in some parts even faster than, those
C) so fast, and in some parts even faster than, those
D) as fast as, and in some parts even faster than, those
E) as fast as, and in some parts even faster than what they did.

My pick is E). My translation of the sentence is pinelands land values rose as fast, even faster than land values rose outside the pinelands.
What they did = land values rose

The correct answer is D). With D) in the sentence, my translation is pinelands land values rose as fast, even faster than land values outside the pinelands.
Those = land values

It seems to me that the rising of land values at one place is being compared with the land values at another place. In my opinion, the comparison isn't logically sounds.

Any ideas will be greatly appreciated!