baaniNitin wrote:
and financial Services -----last one in the list ------> eliminate A,B
by providing..............and by staying............ --------> Parallel
IMO E
What is problem with D? Consider a simpler example:
By eating healthy and sleeping plenty, I improved my health.
Is the preposition
by required before the second gerund as well?
To answer this question, let us recollect the
Once in twice out rule:
The parallel structure here is
X and Y: If we consider the preposition
by inside the parallel structure, we must use
by two times. In such case
by should be used both in X and in Y.
However we could also consider that the preposition
by is outside the parallel structure. In such case we would use
by only once. It would cover both X and Y.
This ambiguity often occurs with AND structure because we cannot determine where the parallelism starts, whether the preposition is inside or outside. However, for two-part structures such as NOT ONLY.... BUT ALSO, it is easy to determine whether the preposition is outside or inside and such ambiguity does not occur.
I get your point. Since, there Is ambiguity here. How do we pick the correct answer here?