Read the passage given below and answer the questions that follow choosing the correct alternatives given.

"Eat the right amount of the right food at the right time" is a food rule for everybody. Those' who follow it usually notice the benefit in greater physical and mental efficiency, and more stamina and vigour. They add years to their life as well as vitality to their years.

Our body is the most wonderful engine of all, because it builds and repairs itself. It needs fuel, lubricants and other materials which we call food or nutrition, and this food should consist of minerals, carbohydrates, vitamins, fats and proteins.