Which is a main function of lipids? providing energy storage transmitting genetic information forming bone and muscles fighting infection and disease

Answer is providing energy storage.

Lipids are naturally occurring group of molecules which include fats, oils and some steroids. They composed of fatty acids bonded to a wide range of other compounds. Lipids are important constituent of the diet. It stores energy. Storage lipids are triglycerides made up of three fatty acids and a glycerol. Fatty acids are in non-esterified form and are released from triglycerides to provide energy  from stored lipids and to form the structural components for cells.

d statement

explanation:

a covalent bond, specfically triple bond