Some parent–child bickering during the adolescent years may indicate .

a healthy relationship      

Explanation:

A healthy relationship is described as a relationship in which two different persons tends to develop a significant connection that is based on support, mutual respect, honesty, and trust. There are different qualities involved in a healthy relationship including compromises, fighting fair, anger control, individuality, and good communication, etc.

The correct answer is a healthy relationship.

sectionalism continues to divide the nation as the question of slavery being allowed in the mexican cession became a problem. -the results of the mexican war spark secession in the south because the north did not want to allow slavery in the territories won.