C is ruled out because idiomatically wrong. "not only...but also" is the correct usage.
D seems wordy and awkward. "but also it does quantify"?
A also is wordy in a similar manner."but also it can be used to quantify". also A is not parrallel.
E redundantly uses "the method" twice when once can be enough.
B is lucid and clear.
hope my explanation helped.
It matters not how strait the gate,
How charged with punishments the scroll,
I am the master of my fate :
I am the captain of my soul.
~ William Ernest Henley