Answer:
a and c
Explanation:
According to my research on studies conducted by various psychologists, I can say that based on the information provided within the question there are two big errors that David has made. Firstly, he attributing causes where none have been found, since nothing in his sons behavior suggests that it is from a lack of eating together. Secondly, David failed to distinguish between group results and individual needs, eating together does not solve the individual child's current problem which is what is most likely causing him to act out.
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