A serious eating disorder marked by binge eating, followed by methods to avoid weight gain is:
1. obesity
2. bulimia
3. anorexia nervosa
4. pellagra

A common cause of peptic ulcer disease is:
1. Increased activity of the autonomic nervous system in persons with chronic stress
2. Infection of the stomach wall by Helicobacter pylori (a type of bacteria)
3. Consuming high levels of dairy products and hot, spicy foods
4. Increased production of hydrochloric acid (HCl) or gastrin by the stomach

Assertion: Pernicious anemia is preventable with balanced diet or with supplements.
Reason: Most green leafy vegetables have an adequate amount of B₁₂ that can prevent pernicious anemia.

1. Both assertion and reason are true and the reason is the correct explanation of the assertion.
2. Both assertion and reason are true but the reason is not the correct explanation of the assertion.
3. Assertion is true but reason is false.
4. Both assertion and reason are false.

Assertion: Constipation can be caused or exacerbated by a low-fiber diet, low liquid intake, or dieting.
Reason: Dietary fiber helps to decrease colonic transport time, increases stool bulk but simultaneously softens stool.

1. Both assertion and reason are true and the reason is the correct explanation of the assertion.
2. Both assertion and reason are true but the reason is not the correct explanation of the assertion.
3. Assertion is true but reason is false.
4. Both assertion and reason are false.