This question presents a sentence, part of which or all of which is underlined. Beneath the sentence, you will find five ways of phrasing the underlined part. The first of these repeats the original; the other four are different. If you think the original is best, choose the first answer; otherwise, choose one of the others.
The complex dynamics that develop in the nuclear family unit as children grow, and develop a desire for independence requires that parents adjust to the ever changing paradigm, defining their roles as both parents and partners and avoiding the pitfalls that frequently open without notice at their metaphorical feet.