Unlike vitamins, minerals are
a. needed in small amounts
b. nutrients
c. provided by food
d. inorganic

C. needed in small amounts.

Minerals are also needed for the body although this should be taken in a very controlled amounts only.
Minerals and vitamins combined form the micro-nutrients of the body.
With micronutrients, only relatively little amount of nutrients is required to improve health. They are usually in milligram and microgram amounts and are enough to sustain to the metabolism and growth supplication. On the other hand, macronutrients are those that need large portions and quantities such as carbohydrates, fats and proteins. We need more of these to be converted to energy for movement and muscle growth. 

Lipid because of the high percentage of carbon to carbon bonds, which store more energy than other bonds.