Final answer:
Eating small, frequent meals, drinking plenty of fluids, and taking over-the-counter antacids can help manage heartburn during pregnancy, but eating spicy foods is not recommended as it can worsen symptoms.
Step-by-step explanation:
To manage heartburn during pregnancy, certain lifestyle changes and eating habits are recommended. Among the options provided, (D) Eating spicy foods is NOT an effective way to manage heartburn during pregnancy. Eating spicy foods can often exacerbate heartburn and GERD symptoms.
Eating small, frequent meals (A) helps by not overfilling the stomach and thus reducing the likelihood of acid reflux. Drinking plenty of fluids (B) can aid in digestion but should be done in moderation and not alongside large meals to prevent distension of the stomach. Taking over-the-counter antacids (C), which are substances that neutralize excess hydrochloric acid (HCl) in the stomach, can also relieve symptoms of heartburn temporarily. However, these should be used with caution and preferably under the advice of a healthcare professional during pregnancy.