Final answer:
The client should eat dry cereal before getting out of bed.
Step-by-step explanation:
The correct statement by the client that indicates an understanding of the teaching is B. The client says, 'I will eat dry cereal before I get out of bed.' This statement shows an understanding of the recommendation to eat a light snack before getting out of bed in the morning to help alleviate nausea during pregnancy. Eating dry cereal or crackers can help absorb stomach acid and prevent an empty stomach, which can contribute to nausea.