Just as learning commonly tested idioms c

[AnuH387]

Just as learning commonly tested idioms can improve one’s GMAT verbal score, so too can memorizing formulas improve one’s GMAT quantitative score.

Hi Ron , Stacey
A. Just as learning commonly tested idioms can improve one’s GMAT verbal score, so too can memorizing formulas improve one’s GMAT quantitative score.
B. Just as learning commonly tested idioms can improve one’s GMAT verbal score, memorizing formulas can also improve one’s GMAT quantitative score.
C. Just like the learning of commonly tested idioms can improve one’s GMAT verbal score, so too can memorizing formulas improve one’s GMAT quantitative score.
D. Just like learning commonly tested idioms can improve one’s GMAT verbal score, also memorizing formulas can improve one’s GMAT quantitative score.
E. As learning commonly tested idioms can improve one’s GMAT verbal score, memorizing formulas can improve one’s GMAT quantitative score.

Source :gmat club

The official answer is A.
but is the sentence parallel?
Is this an inverted sentence structure .?? can inverted sentence structure be parallel to a normal sentence structure ..
Please help..

[RonPurewal]

per the forum rules, we need a citation of the ORIGINAL SOURCE before we can answer any questions about this problem.

ORIGINAL SOURCE = ORIGINAL authorship = whoever holds the actual copyright to the problem (not another forum, such as GMAT club).

thanks.