This is a test of commonsense with single/multi-choices. Complete the next sentence:

How to prevent acid reflux during pregnancy
Eat smaller meals more frequently.
Another recommendation for combating heartburn is to eat smaller portions of food spaced out through the day. Eating smaller meals every few hours instead of three large meals many hours apart prevents your stomach from becoming too full and putting pressure under your diaphragm and pushing acid up into your esophagus.

OPTIONS:
(a). A half cup of food every three hours is a good two cup limit for women with sensitive stomach. Consider eating about two small meals a day.
(b). This prevents acid from settling in your esophagus, leading to stomach acid reflux. Calories for most people require about 2.0 cups of cooked foods daily.
(c). Meals often have less of a belly or are higher in calories. Eat smaller meals as much as possible and only consume small meals at night.
(d). As such, switch to eating 5-6 small meals or snacks daily spaced about 2 hours apart. Your last meal or snack of the day should be eaten early in the evening, at least 3 hours before you head to bed.
The answer is:
(d).