Select all that apply.

carbohydrates

in the body are primarily fats
are primarily sugars and starches
are the most readily available source of energy for organisms
are the largest of the four main biological macromolecules

are primarily sugars and starches.  

are the most readily available source of energy for organisms

are the largest of the four main biological macromolecules.

Explanation:

Carbohydrates are organic compounds made of carbon(C), oxygen (O) and hydrogen (H). They are the most abundant organic substance synthesised by green cells through photosynthesis. Carbohydrate is the main source of energy and also serve as structural components of organisms. It is also a part of DNA and RNA. Examples of carbohydrates are Glucose, starch, and cellulose.