Seven-year-old sam can't sit still in class and is often disruptive. his teacher has noticed that he has difficulty reading and playing with other children. she knows that his mother has a drinking problem. sam could be displaying effects of behavioral that his mother ingested while he was in the womb.

Teratogens

Explanation:

Teratogens refers to the substances or agents a pregnant mother is exposed to during pregnancy period. The teratogens are present in the surrounding environment of a pregnant lady which could be the physical, biological and chemical agent.

In the given question since the mother consumes the alcohol, therefore, it could be predicted that the mother would have consumed the alcohol during pregnancy period which could have affected the growth of the brain of Sam and affected the behaviour of Sam thus called behavioural teratogens.

Thus, teratogens are the correct answer.

i think the answer is strength

chemical preservatives