GMAT Sentence Correction (SC) | The normative model of strategic decision-making suggests

The normative model of strategic decision-making suggests that executives examine a firm’s external environment and internalconditions, and in using the set of objective criteria they derive from these analyses, can decide on a strategy.

Issues:Parallelism | Verb form

Analysis:
1. The core of the sentence: ".. model ... suggests that executives examine.. and decide ... "
- to maintain parallelism, we need to make sure that the entities separated by "and" are parallel i.e. clauses
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