What is the correct way to improve nutrition while keeping food cost low?

Correct answer: Choosing affordable nutrient sources like pulses and seasonal vegetables

Choosing affordable, locally available foods such as pulses, cereals, seasonal vegetables, fruits, milk or curd can provide protein, vitamins, minerals and fibre at a reasonable cost. Seasonal and minimally processed foods are often cheaper than supplements or highly packaged products. A balanced diet does not require expensive foods; it requires variety, suitable portions and wise planning. Therefore, option A is correct.