Answer:
Big business demands superior forecasting, reporting, and analyzing.
Step-by-step explanation:
Parallel structure (parallelism) is the repetition of a chosen grammatical form within a sentence. This structure is used to add clarity to the writing and to make it easier to understand.
From the given sentences, only the sentence - Big business demands superior forecasting, reporting, and analyzing - has a parallel structure. It creates a parallel structure with words that end in -ing: forecasting, reporting, and analyzing.
Other sentences don't have parallel structures:
Our new paralegal must be smart, efficient, and have flexibility - have flexibility changes the structure -->> be + adjective, and have + noun.
The accident shattered her pelvis, dislocated her foot, and her spinal column was broken in three places - the first two verbs are past tense, and the third one is used in the passive voice.
A good financial planner must be certified, competent, and must possess ethical standards - must possess ethical standards changes the structure -->> be + adjective, and have + noun.
Business writing should be concise, informative, and have no mistakes - have no mistakes changes the structure -->> be + adjective, and have + noun.
I hope it helped you :)