The new software not only provides enhanced functionality but also it is more user-friendly, and it offers greater flexibility.
This one has to play with parallel structures + pronoun
(A) but also it is more user-friendly, and it offers greater flexibility.
>> parallel but “it” refers to “the new software” and is the subject of every verb => can be removed
(B) but also is more user-friendly, and offers greater flexibility.
>> here! “it” is removed! Better than A. so keep B.
(C) but also it is more user-friendly, and offers greater flexibility.
>> “it” is in 1st clause but not in 2nd => not parallelized
(D) but also being more user-friendly, and offering greater flexibility.
>> clearly wrong answer: Verb ing can’t be used in these clauses. They require real verbs
(E) but also it is more user-friendly, and it offers greater flexibility.
>> same as A.
Therefore, B is the best answer!
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