In a Predominantly Poor Community, Where Eating Clay ( Pica

In a predominantly poor community, where eating clay ( pica ) is a common practice, through which of the following actions can the CHN intervene at the tertiary prevention level?

A) Helping the clients obtain extra welfare money, after explaining that clay, although filling, does not provide necessary nutrients
B) Initiating early intervention in the school system through education programs designed to focus on healthy food choices
C) Conducting laboratory testing and physical assessments to identify nutritional deficits resulting from pica and the lack of regular food intake
D) Surveying families to determine the presence and extent of pica