Answer:
chains of carbons
Explanation:
Tristearin is a triglyceride containing a glycerol molecule attached to 3 fatty acids. According to the question, it has the ability to store energy for a long-term. This ability is due to the LONG CHAINS OF CARBON present in its chemical structure.
Fatty acids are long chains of hydrocarbon with a carboxylic acid functional group (-COOH). Fatty acids are able to store energy in the carbon bonds that form in these long carbon chains that comprises its structure. Therefore, Tristearin is effective at storing energy for a long-term due to the chains of carbon in its structure.