Correct Answer: D

Rationale: The correct answer is 'D. All of the above'. This is because, according to regulations, food labels must include the information on total fat, saturated fat, and trans fat. These types of fats are crucial for consumers to monitor, as they can significantly affect heart health. Choices A, B, and C are all correct, but they are only parts of the total information that must be provided. Therefore, the most comprehensive answer is 'D. All of the above'.

Correct Answer: B

Rationale: This scenario illustrates depression or social isolation as a risk factor for malnutrition. After the death of his wife, the elderly man may have experienced depression or social isolation, which can lead to decreased food intake and poor nutritional status. Although age, chronic illness, and impaired mobility can also contribute to malnutrition, they are not the primary factors described in this scenario. The history of chronic illness (Choice A) and impaired mobility (Choice D) were not mentioned in the scenario, and while age (Choice C) is a factor, it's not the main factor depicted in this case.

Correct Answer: C

Rationale: Vitamins A, D, E, and K are fat-soluble, meaning they require fat for absorption. Diseases that cause fat malabsorption can lead to deficiencies in these vitamins.

Correct Answer: D

Rationale: All the listed options (Age, Sleep, Fasting/Starvation, Activity Level) are factors that can affect a person's Basal Metabolic Rate (BMR). BMR is the number of calories your body needs to accomplish its most basic (basal) life-sustaining functions. Age can affect BMR as metabolism slows with age. Sleep can influence BMR as metabolism slows during sleep. Fasting or starvation can decrease BMR as the body conserves energy. Activity level can also influence BMR; the more active you are, the higher your BMR, as your body requires more energy for physical activities.

Correct Answer: D

Rationale: The correct answer is 'D. All of the above'. This is because, according to regulations, food labels must include the information on total fat, saturated fat, and trans fat. These types of fats are crucial for consumers to monitor, as they can significantly affect heart health. Choices A, B, and C are all correct, but they are only parts of the total information that must be provided. Therefore, the most comprehensive answer is 'D. All of the above'.