Answer:
Among the given factors, the factors that may affect nutritional needs are:
a. Age: Different age groups have varying nutritional requirements. Infants, children, adolescents, adults, and older adults all have different dietary needs due to growth, development, and physiological changes.
b. Activity level: The level of physical activity directly affects the body's energy expenditure and nutrient requirements. More physically active individuals may need increased calorie intake and specific nutrients to support their activity levels.
e. Age activity level: This seems to be a combination of factors a and b mentioned above.
The remaining options, c. marital status and d. economic status, do not directly impact nutritional needs. Marital status and economic status can indirectly affect access to food choices or availability, but they do not determine specific nutritional needs.