Final answer:
Low preoccupation with the ex-spouse is the best predictor of healthy postdivorce relationships, as it enables individuals to move on and establish positive future connections.
Step-by-step explanation:
The best predictor of healthy postdivorce relationships appears to be d. Low preoccupation with the ex-spouse. Preoccupation with an ex-spouse can influence the individual’s ability to move on and form a healthy new relationship, whereas those who are not fixated on their former partner are better able to establish a positive future. Moreover, although high income levels and having children might impact postdivorce dynamics, these factors do not inherently determine how healthy a relationship will be after a divorce. For instance, having children could potentially facilitate a more cooperative postdivorce dynamic to meet the responsibilities of co-parenting, but without a low preoccupation with the ex-spouse, there might be ongoing conflict.