Which of following best describes why the formation of polysaccharides is beneficial to organisms?

I do not see any choices provided. So instead I will explain why polysaccharides are beneficial to living beings.

They are one of the three carbohydrates found in all of the food you eat!

It is a long chain of carbohydrates which is a major source of energy for organisms.

This means polysaccharides help the lifetime of an organism by providing energy!

enzyme active site and substrate specificity

enzymes bind with chemical reactants called substrates. there may be one or more substrates for each type of enzyme, depending on the particular chemical reaction. in some reactions, a single-reactant substrate is broken down into multiple products

idk

explanation: