Family systems therapies may be particularly appropriate in the treatment of

A) geriatric clients.
B) children.
C) adults.
D) parents.

Family systems therapies focus on the dynamics and relationships within a family unit. Therefore, it can be particularly effective in treating children, as their behavior and emotions are often influenced by their family environment. It can also be helpful for parents who may need to learn how to better communicate and interact with their children. While family systems therapy can be beneficial for adults and geriatric clients, it may not be the most appropriate or effective treatment approach for all individuals in those populations.