Correct Answer: A

Rationale: The correct answer is A: Bulimia. Bulimia involves repeated episodes of binge eating followed by purging, which can lead to the erosion of lingual enamel, enlarged parotid glands, palatal bruising, and dentinal hypersensitivity. This behavior exposes the teeth to stomach acid during purging, causing damage to the enamel. Choices B, C, and D are incorrect because these conditions are not typically associated with the specific oral health issues mentioned in the question.

Correct Answer: D

Rationale: Vitamin A can be found in high amounts in foods like cantaloupe, eggs, carrots, and milk, all of which help to maintain healthy vision, skin, and immune function.

Correct Answer: A

Rationale: For patients with kidney disease, it's important to manage fluid intake from all sources, including foods like gelatin and soups, which can contribute to fluid overload.

Correct Answer: A

Rationale: Impaired dentition affects a patient's ability to chew and consume a variety of foods, leading to potential nutritional deficiencies and malnutrition.

Correct Answer: B

Rationale: Fat provides 9 kcal per gram, making it the most energy-rich nutrient compared to carbohydrates and proteins, which provide 4 kcal per gram.