The word that will assist in developing parallel structure in the sentence:
Planning, reach
What is parallel structure?
Parallel structure is described as the usage of the words, as well as, phrases possessing similar grammatical construction.
This helps in enhancing the readability and giving equal importance to two or more ideas offered in a sentence.
Since 'and' links the two ideas in a parallel structure, the first part would employ 'planning' and the latter part would use 'reach' to follow it.
Thus, 'planning' and 'reach' are the correct options.
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